Best Friend's Sister, Chapter 21 B By Jon Grey *** Whatever nerves I'd developed faded as I opened the door. Sabrina was wearing a long-ish coat, which was appropriate for the chill night, but as she stepped inside, going ahead of my girlfriend, Tiffany pulled it open, exposing the black-haired girl's full tits to me. Sabrina looked surprised for a moment, and stepped forward, reaching up to cover her chest with her hands. It allowed me the opportunity to explore the rest of the exposed woman, who was wearing both the maid outfit that we'd bought at Halloween and the collar that Tiffany had made for her. Her stomach was tightly wrapped in the outfit, a stretching fabric that showed off a toned abdomen. The skirt barely was decent, with her fishnet stockings, lining them from her thighs to her high-heeled shoes. I watched the sculpted lines of her legs meet the floor and nodded my approval. Her hair was kept well, and as I looked at her eyes, I could see her impatience in my appraisal of her uniform. Her big boobs hung gently over the cloth beneath her tits. They, like my girlfriend's big orbs, remained high on her chest, her olive skin topped with darker nipples. I stared brazenly at her chest before looking behind her to see my girlfriend moving into the room. She was wearing a similar coat, but when she pulled it off, she revealed only a tight white t-shirt with no bra. Her thick tips poked through the fabric as she glanced at Sabrina. Tiffany closed the door and looked at me. "Here she is," she told me. I glanced at Sabrina then moved to Tiffany and kissed her. Tiffany wrapped her arms around me, and we shared a passionate kiss. I could feel Tiffany try to work me up, getting me ready for the night as well as she could. But I also sensed a small hesitation on her part. In under a minute we broke the kiss, and I turned to Sabrina. Her face registered some concern, but she was dutifully standing there, her big tits bared. Tiffany looked at me and nodded, then pushed me gently toward the couch. I moved that way and Tiffany grinned. "Yeah, sit down, Jon," she told me. "Some ground rules," Tiffany told me. She looked at Sabrina, who nodded. I glanced at her tits again, but tried to pull my eyes away to look at her face. Sabrina's face didn't change as Tiffany continued. "First, if either of us gets at all uncomfortable we stop. We don't have to do this, and I don't want anyone getting too hurt." I nodded vigorously. "Told you he'd agree, Rin," Tiffany said, looking over her shoulder. Sabrina smiled briefly before Tiffany continued. "Did you want to set your rules first?" Sabrina nodded. "No anal," Sabrina stated without hesitation. "I'll be honest, I'm okay with a lot of stuff, but neither of you is going there. Clear?" I nodded again. Neither Tiffany nor I had ever expressed interest, and Tiffany's creativity always surprised me. "Tiffany has final say over what happens," Sabrina said. "If I don't hear from her about something, I'm assuming it's okay." "What do you mean?" Tiffany asked. "Sorry, I just want us all on the same page, and maybe we'll all enjoy this." Sabrina glanced at her, but decided to continue. "If I'm doing something with Jon, and you don't like it, say something. But if Jon says something and you don't confirm or deny, I'll just keep going. You're the one in charge for the most part. This may not come up, but I want to let you know where the buck stops. And if you see Jon doing something," she added suddenly, "just tell him to stop. You good with this, Jon?" I nodded, unsure of what behavior Sabrina had imagined. "You have any rules, Jon?" I looked at both women. "Tiffany, I know you'll tell me if something's not right. Sabrina, please do the same. All the ownership aside, I don't want to make you uncomfortable at all. If I step over a line, tell me." Sabrina sighed in relief. "Looks like we all have the same ground rules," Tiffany said. We all chuckled, and Sabrina looked at Tiffany. "Bedroom?" Sabrina asked. "Nope," I said, suddenly bold. "Tiffany had promised me something a while ago. Care to demonstrate, baby?" Tiffany grinned and knelt in front of me. I motioned for Sabrina to stand closer then reached out to gently cup her left breast. Sabrina allowed me to fill my hand and I softly caressed her firm orb. The dark nipple grew hard quickly. Tiffany's hands worked fast, and soon my half-hard cock fell out of my pants (it had been fully erect until the rules discussion had made me nervous). Tiffany looked up to me and blinked her eyes. "What would you like, baby?" she asked. I was surprised to feel Sabrina lean over. I released her tit and she bent closer to my ear. "I'll help her suck you off," she offered. Tiffany grinned and slid over to the left. Sabrina walked to my knee and knelt next to her rival. Tiffany looked at me and grinned. "He is so easy," Tiff said to Sabrina. Sabrina nodded. "Can you blame him?" the black-haired girl teased. Tiffany reached up and held my quickly stiffening dick at the base. She looked at me and grinned again, then turned her gaze to her sorority sister. Sabrina felt Tiff's stare, looking between her and my cock. Sabrina leaned forward and suddenly my dick was in another woman's mouth again. Sabrina gently kissed and licked the head of my swollen cock, then slowly brought her lips halfway down my cock. I groaned as I felt her gently pull up with her lips creating a tight seal around me. I glanced at Tiffany, whose left hand was cupping and squeezing her right breast. Her forearm pushed her left tit inward, as she pulled and tweaked her right boob. Sabrina's tits were out of my view, as she was pushing them into the couch. Her mouth, however, was sliding up and off my cock and she looked to Tiffany, who nodded. I groaned as my girlfriend filled her mouth with my dick in a practiced move. Sabrina moved to the side a bit to allow Tiffany a more comfortable and accessible position. I watched Sabrina's tits jiggle as she moved back, all the while feeling Tiffany's tongue dance over some of the same places Sabrina had focused her attention. I wondered if Tiff had shared some secrets with her rival. Sabrina surprised me by putting her heavy tits on top of my left leg so I could see her nipples. Her fingers danced over her boobs as Tiffany pulled off of me. Soon, my girlfriend's big tits were on my right leg, and I had four gorgeous breasts leaning on me. I reached out, filling both hands with the ample flesh, gripping Tiffany's firm left boob with my right hand, while palming Sabrina's heavy jug with my left. Sabrina grinned, demurely, as I fondled her thick breast. I glanced at Tiffany, who smirked as I hefted her big tit. "More head?" she asked. "Yeah," I grunted. "Sabrina, suck my cock," I ordered. "Sure," Sabrina said, still grinning. "You know a good blowjob when you get one, Jon; I'll give you that." I would have said something, but Sabrina slowly began taking me into her mouth, and I made a slight gurgling noise. Tiffany rose and cupped her big tits, shaking them. "She does give good head; I've heard her tell some nasty tales." Sabrina mumbled something and then cupped my balls. Tiffany leaned over to whisper something in her ear, and Sabrina slowly pushed her mouth down until I felt her tongue flicking my balls. "She's got you all, Jon. She sucks dick so good," Tiffany added. She began pulling at her tits more aggressively, distending them gently. I groaned again as Sabrina pulled away. She gasped and immediately slid her mouth back down, sucking just the head in. Some low slurping noises came from my cock as Tiffany's beaten rival began blowing me. "C'mere," I motioned to Tiff. My girlfriend knew exactly what I wanted, and soon my mouth was wrapped around her turgid nipple as Sabrina kept her attention focused on my cock. Tiffany would pull out and alternate her big boobs for me, giving me all I could handle with a feast of her round, supple flesh. I shook her other breast freely, and Tiffany let me have my way with her. I pulled away gently and Tiffany leaned back on the couch to join my view of Sabrina's bobbing head. Her eyes flickered up to meet mine, then over to Tiffany's, where the two women locked gazes while Sabrina's lips puffed out around my shaft. I reached over to play with my girlfriend's big boobs with my right hand, then lifted Sabrina's big left boob and plopped it on the couch. Sabrina shifted to accommodate my desire, and soon both of my hands were again full. I glanced at Tiffany, who grinned, and gently pulled away to sit on the edge of the couch. "Stop for just a second, Sabrina," she said softly. Sabrina immediately stopped, but slowly slid off of me, letting my wet cock slap against my stomach. "Stand up and lean over at the waist. I have an idea about what to do with you," Sabrina stood up and leaned over. I was impressed with her posture, and I loved the view as her tits swung beneath her. "Jon," Tiffany chided. "Hold your cock so Sabrina can suck on it some more." I chuckled at the tone, but held my cock at the base as Sabrina leaned over even further. Her soft mouth descended on me again, and I leaned back fro just a moment. When I pulled my head back, I saw Tiffany gently squeezing Sabrina's hanging breasts. She shook them and Sabrina moaned just a bit around my cock. I grunted as Sabrina sucked me again, slowly and patiently. Tiffany swung Sabrina's right tit toward her left, letting the breast wobble as it pointed downward. "Damn," I said, loving the view of Sabrina's shaking tits. "You like watching Sabrina's big udders, baby?" Tiffany cooed. She swung them again. Sabrina groaned again and I nodded. "Oh, yeah," I said. "Make 'em shake for me, Tiff." Tiffany bit her lower lip as she smiled, but soon Sabrina's tits were shaking as much as Tiff could make them. Sabrina groaned and grunted as Tiff played with her, sending waves of vibration up my cock. Sabrina pulled off momentarily to look at her big tits wobbling on her chest before resuming the blowjob. I felt a stirring, and realized that the night was still young. "I'm going to cum soon," I announced. Tiffany nodded but did nothing, save resume play with Sabrina's tits. Sabrina, however, pulled off. "Where is this load going?" she asked, wiping her mouth. Her hand slid idly up and down my shaft. "You told me a while ago that you swallowed," I said, breathing heavily. Sabrina nodded, and knelt. "Sorry," she told me as she dropped to her knees. "That angle's not really great for finishing a blowjob." Tiffany shrugged and knelt beside her. Sabrina slid over just a bit as Tiffany leaned in to suckle on the head of my cock. "Aw, that's sweet," Sabrina said. "You going to cum in her mouth, Jon?" Tiffany looked up at me and I felt myself left in the lurch. Sabrina reached over to Tiffany as I paused to shove Tiffany's tit upward, letting the top of her tits brush my balls. "No," I groaned. "Both of you push your tits into the other. Gently," I warned. Both girls nodded, reacting quickly to my command. Soon, Tiffany's right breast was gently pushing Sabrina's left, and vice versa. I stood up and stroked myself for a moment, but then Sabrina and Tiffany leaned in for a kiss. "Oh shit," I groaned. Ropes of my cum began flying out of my cock, and I was at least a little proud in retrospect how much percentage wise landed on their tits. A few strands hit Sabrina's right cheek, and the left side of Tiffany's face as well, mostly early strands as I spasmed. I sat down and leaned back, breathing heavily. Tiffany looked at me, then at Sabrina, who nodded. I wondered for a moment what they were doing, then Tiffany leaned over and began licking Sabrina's tits clean. I groaned as I watched my girlfriend carefully and meticulously remove all traces of my explosion. Sabrina shifted so Tiffany's mouth constantly found her nipple, and soon Tiffany was hefting Sabrina's tits into her mouth. Sabrina motioned me to stand and as I did, she leaned over to suck my cock clean while my girlfriend licked her big tits. She let me fall out of her mouth with a sigh as Tiffany's mouth found her nipples again. "Do you want me return the favor, Jon?" Sabrina asked. "Do you want me to suck your cum off of your girlfriend's superior tits?" Tiffany hefted her tits for Sabrina. Sabrina turned to Tiff and leaned over. "Fucking hell," I heard myself whisper. "You're going to worship those better tits?" "I owe it to them," Sabrina whispered. "She crushed my boobs with her better pair, Jon." It was a scene right out of a porno, and I couldn't believe the black-haired girl's willingness to submit. But as she leaned over, I saw her tongue trace a slick, wet line over Tiffany's left breast. Tiffany smirked as she watched the black-haired girl cleaning her big rack. I groaned as I heard Sabrina wetly slurp up the cum, knowing full well she was doing it for my benefit. Soon, Tiffany's tits were spit-clean, shining in the dim light of the room. "What now, Jon?" Tiffany asked. Sabrina glanced down and raised her eyebrows as my cock began to slowly come back to life. I was as high as I'd ever been off watching two willing, gorgeous women continually asking for my wishes, so I made a request that some part of my brain doubtful flagged as out of character. "I'm not quite ready for a whole lot," I said. "You two did a number on me," I told her. Sabrina leaned in to suckle on Tiffany's big tit again, and Tiffany groaned. I grinned as Tiffany looked down with her mouth half open to watch Sabrina skillfully manipulate her breasts. I leaned back on the couch to watch as Sabrina kissed her breasts, then slowly moved down to her stomach. I said nothing, fearful that I'd destroy that moment. At first I wondered if Sabrina was just teasing my girlfriend, but the moment she reached Tiffany's waistband, her agile fingers dancing for a moment before she slid her pants down. "Rin," Tiffany whispered. "Just like old times," Sabrina said. Tiffany surprised me by taking the initiative to slide her own panties down. "Why don't you sit down next to your boyfriend?" Sabrina asked. Tiff sat next to me, throwing me an embarrassed glance as Sabrina knelt between her legs. Her attention was immediately pulled away as Sabrina dove in, head first, sending shudders throughout my girlfriend. Her hands immediately went to Sabrina's head, pulling the raven locks just enough to indicate her desire. Sabrina apparently obliged, and I watched, fascinated, as Tiffany's hands slowly left the rhythmic bobbing of Sabrina's head to cup her big tits. Tiff's eyes were closed and Sabrina's hand snaked out to find my crotch. The oral display had brought me back to life fairly quickly, and Sabrina wrapped a soft, gentle hand around my cock. Tiffany was moaning loudly as Sabrina stroked me, and I watched the busy mouth of Tiffany's beaten rival. Sabrina pulled away for a moment, looking up with smoky eyes at my girlfriend, who smiled. Sabrina gently let her free hand slide between Tiff's legs while Sabrina stood. She took a step over to me and knelt. Tiff gasped as Sabrina started fingering her. I noticed Sabrina's thumb staying in almost constant contact with Tiffany's clit. "Well, Jon, it's your night," Sabrina whispered. "Do you want me to finish your girlfriend first?" I nodded. "Yeah," I managed. "So generous. I'll be right back," she promised. "What about it, Tiff?" Sabrina teased. "You're not going to turn down this offer, right?" Tiffany glanced down at Sabrina. "Start sucking," Tiff ordered. Sabrina giggled, but lowered her head. Tiff sighed as Sabrina's skilled tongue did its job. I reached over and began gently pulling Tiff's nipples. My girlfriend suddenly started grunting as Sabrina pushed forward. Her head began moving more rapidly as she began working over my girlfriend. I leaned over to Tiffany and enjoyed the reversal of roles for just a moment. "Go ahead and cum, Tiff," I whispered. "Let her take you over the edge." "OH FUCK!" Tiffany screamed, throwing her head back. She whimpered throughout the orgasm, and Sabrina continued applying gentle pressure with her mouth. "Holy shit," Tiff breathed. "Thanks, Rin. I'd forgotten..." she let her voice trail off as she looked at me. Sabrina's smile grew into a look of confusion as I stared at Tiffany. Then it hit her. "She never told you?" Sabrina asked. "This may the first time we've had a guy involved, but Tiff and I go way back, Jon. We weren't always dating guys." "You two dated?" Tiffany sputtered and Sabrina laughed. "No!" both girls said in unison. "We just had a mutually beneficial system to relieve stress," Tiffany managed. She was still breathing hard from her orgasm. Sabrina laughed. "As much as I'd love to make this a point of contention and strife, she's right. We fooled around a bit. Your girl is quite good at it," Sabrina whispered conspiratorially. I closed my eyes and breathed in and out for a moment. When I opened them, Sabrina was on the arm of the couch, her hand on Tiffany's shoulder. Tiffany was looking at me, a half-smile on her face, almost hopeful. "Wow," was all I could say. "Though I guess my passing judgment doesn't work since I have both of you at once, huh?" Tiff's face fell with relief. "Sabrina, I'm ready for my closeup," I told her. "But let's go to the bedroom," Tiff interjected. "There's more room." I nodded and Sabrina got up. Tiffany motioned Sabrina to the room and caught me from behind. "I'm sorry I didn't tell you," she whispered. I looked at her. "You will be," I promised. I reached down and let my finger dance on her sensitive clit. She leaned forward, catching herself on my shoulders. She looked up at me in shock as I slid my finger away and walked into the bedroom. When I got into the room, Sabrina was standing by the bed. "I'm going to lay down and let you suck me off," I told her. "While Tiffany repays the kindness you showed her," I said. Tiffany's eyes went wide, and Sabrina glanced at her sorority sister. "You two have a complicated relationship already," I said, feeling confidence and even a sense of power. "This is just the next step." "I'm game," Sabrina said quietly. Tiffany just nodded. I positioned myself parallel to the bed, with my head at the headboard. Sabrina lay her body perpendicular as she prepared to suck me off. Tiffany moved around the bed and knelt at the side, slowly rubbing Sabrina's open pussy. "I'm going to apologize in advance if I get... distracted," Sabrina told me, opening her mouth and taking me in without hesitation. Tiffany heard the beginning, and the immediate groan around my cock told me that Sabrina was enjoying Tiffany's attention. "Holy shit, Tiff," Sabrina said, pulling me out of her mouth. "I forgot how good you were at that," she whispered. Sabrina's mouth immediately returned to my cock. I looked to Sabrina's ass, watching my girlfriend eating her pussy. I reached down to pull at Sabrina's heavy breast. Sabrina kept sucking, but glanced up at me and grinned. After a few more passes, Sabrina got a wicked glint in her eye and pulled away. "Do you play with Tiff's big tits while she sucks your cock? I always did when she was slurping on my pussy, Jon. Are you trying to picture us fucking each other now?" She sucked me into her mouth again. I shook Sabrina's tit and felt her tongue on my balls again. Sabrina stopped and pulled off quickly. "She's already got me cumming, Jon. Your slut of a girlfriend is making me cum... Oh fuck!" Sabrina screamed. Tiff kept her head buried until Sabrina came down. As soon as Sabrina had regained her bearings, she went back down on me. Tiff stood, looking at me both lustily and meekly. Sabrina bobbed a few times when an idea hit me. "How about we change some things up?" I asked. Sabrina stopped and looked at me quizzically. "You don't want a blowjob?" Sabrina asked, slowly taking me to the root. Tiffany grinned as she watched my face, but I held my resolve. "Not right now," I corrected her. "Right now, I want to take advantage of a very rare opportunity. Both of you kneel right here," I said, pointing to the side of the bed. "Put your tits together for me." Both girls grinned, but did as I asked. I slid over the bed and let my legs slide between them. They repositioned for me. "You want a titfuck from both of us at once, you greedy fuck," Tiffany said, her mouth wide. Sabrina's jaw dropped as I reached down to heft Sabrina's left breast onto my right thigh, and Tiffany's right breast onto my left. "I can honestly say I'll have the four best tits I've ever seen on me at the same time," I told them. I gave them time to mull the decision over. "Well, it's not like neither of us have been on the receiving end, Rin," Tiff noted. Sabrina grinned and pulled her other tit up as did Tiffany. Sabrina grabbed my cock, and Tiffany held her tits open. I slid between my girlfriend's big, heavy tits once more, sighing as I felt her soft skin press around me. Then Sabrina moved forward. I had to close my legs in order to accommodate, but soon my cock was between the shared valley of their four amazing breasts. I began fucking their tits, finally understanding paradise. I had been amazed at how well Sabrina and Tiffany had gotten along; the minor barbs were friendly at the least, I thought as I continued thrusting. Tiffany's tits were jiggling slightly, while Sabrina was holding her boobs more tightly given the angle. Both girls also seemed strangely in sync as they brought their tits up and down, and I fought the urge to ask Tiff if they'd done this before as well. Having learned my lesson, I simply continued enjoying the spoils of a war where I was the territory rather than the participant. I was watching the two girls with obvious interest, even the fog of my reaction couldn't keep me from noticing the shared glances. They locked eyes at least four times while they were sliding their boobs across my shaft. I could tell that the position wasn't comfortable for any of us, though, and I pulled apart. Both Tiff and Sabrina sighed with relief, and I spread my legs, letting my swollen cock rest as comfortably as it was going to. "Lovely, ladies," I said meaningfully. "Were you going to cum on our big tits again?" Tiffany asked. Sabrina pushed her orbs towards me as I stood. "No. I had another idea, girls," I said. "Why don't you both sit on the bed? I have something I want to see," Sabrina and Tiffany stood, then sat down on the bed, their legs dangling over the side. They both looked confused, which, honestly, I was fine with. I wanted this to come out of nowhere. "Kiss," I said softly. They both paused for a moment, uncertain, then Tiffany leaned in to begin curling her head up and kissing her rival. Sabrina's hands immediately responded, gripping Tiffany's shoulders. I was surprised only by the passion of the kiss as they leaned back, free to explore each other's body. Tiff leaned back on the bed and Sabrina followed. I heard the gentle kisses between the two as they made out. I was about to call them off one another and join the fun when Sabrina's hand made its way to Tiffany's pussy. Tiffany's legs spread slightly as her rival/lover/sorority sister began gently manipulating my girlfriend's pussy. Tiffany's hands, meanwhile, lay at her head as she let Sabrina take control. I tried to remain calm but I was watching stuff I'd only dreamed about. Sabrina lifted herself up on her arm gently to suckle at Tiffany's big tits. Tiff scooped up her breast and helped, pushing it towards Sabrina. The latter greedily licked and lapped at the nipple, then seemingly devoured the tit attached to it, it seemed. Sabrina was an aggressive lover, I learned, watching. She kept the tit trapped between her lips even as Tiffany came again. "Fuck, Rin!" Tiffany yelled. "I'm cumming again; oh my god, I'm cumming!" I would have been more jealous had I not almost cum myself, not even touching my throbbing cock. She'd completely given herself to the orgasm and her freed tit flopped all over despite its firmness as she shook from pleasure. As Tiffany came down, Sabrina kissed Tiffany again. Tiff's freed breast fell and shook as Sabrina let it go. She sat up and stretched, and looked at me. "C'mon over, Jon," Sabrina said smoothly. I stood and walked over. Tiffany was still breathing hard. She also sat up, and Sabrina kissed her in front of me. "You certainly seemed to enjoy that," Sabrina said. "And the only thing I remember hearing you say was 'Kiss.'" I nodded, grinning. "We have a sordid past, don't we Tiff?" Sabrina asked. "It would seem we have a sordid present," Tiffany quipped, recovering. Sabrina chuckled. "So what do I do with this?" Sabrina asked. She turned her gaze to my throbbing hard on. "Since you both liked kissing so much," I said, grinning. "Why don't you both give me a kiss?" Both women slid down to their knees and I stepped forward. "Suck me off, girls," I said. Sabrina went in first, and Tiffany's hand circled the base of my cock. I was amazed I lasted as long as I did, but Sabrina had only made two passes before I came right into her mouth. Sabrina didn't seem to mind at all, swallowing dutifully as I groaned and grunted through another orgasm. She slid off and Tiffany replaced her for a moment, then Sabrina stood. Tiffany suckled my softening dick before standing up. "I certainly feel like I know you two better," Sabrina said. I slid my hand down to fondle her ass. Sabrina looked at me and Tiffany grinned. My fingers quickly began teasing the outer lips of her pussy as she tried to speak. She was wet, and I had no problem finding my way around the folds of her pussy to her hardened clit. "I need to... oh, fuck you, Jon. Fuck, fuck.." Sabrina didn't continue speaking, and groaned even more insistently as Tiffany's mouth found Sabrina's right nipple. I fingerfucked her gently, all the while gently flicking her clit. Soon, Sabrina was leaning over, and she looked down to Tiffany for a brief moment. "Lucky bitch," Sabrina whispered. She came hard over my hand and I groaned as I felt her strong pussy contract over my fingers. "What is it you needed?" Tiffany asked, releasing Sabrina's swinging tit from her heavy mouth. I cupped the freed orb, bringing my hand from her pussy to cup her left breast. I grunted as I squeezed the heavy gland, working my fingers to the nipple. Soon I was bouncing both boobs in my hand while Tiffany watched. "I was going to say I needed to go because I have work tomorrow," Sabrina whispered. "And now?" I asked, still juggling her big tits. "I'll go in tired," Sabrina moaned as I pinched both her nipples at once. "You will," Tiffany agreed. "We're not quite done here," she said. Sabrina moaned and this time Tiffany's hand slid between Sabrina's legs. "God, I'm so glad I won that fight. Now I just get to do whatever I want," Sabrina said nothing as her sensitive pussy was met again with skilled, dextrous fingers. "Hold her up by her loser tits, Jon," I cupped her tits from the base, pushing them up as Tiffany worked her over again. I felt her tits shake as she began to respond to the vigorous manipulation. "Dammit," Sabrina moaned, throwing her head back. She leaned against my shoulder, and I looked down to her tits from the top. I tried smashing them together, loving the way the interior curves of her breasts crashed into each other. "I think we're almost done, Jon. Is there anything else you wanted to do?" I looked at my girlfriend, who was offering Sabrina like a toy that she'd gotten bored with. She'd pulled her hand away from Sabrina, and I saw it soaked Sabrina smiled, though. "You bitch," she laughed, breathless. I shook my head. I was amazed at how much we'd fit into one night. I continued playing with Sabrina's big tits, however, enjoying both the sight and feel of her jiggling breasts. I hefted them and dropped them, watching as the flesh wobbled gently on her chest. "You want to keep playing with those big, loser tits, baby?" Tiffany asked. I nodded, slapping them together again. Sabrina groaned she felt me using her tits for her pleasure. "Do you mind if I make her cum one more time?" Tiffany asked in the same blas? tone she'd used just a moment ago. "Not at all," I replied. I dropped her tits again. "Oh damn," Sabrina moaned as Tiffany let her fingers back into the black-haired girl's pussy. "Who owns you?" Tiffany asked. "Fuck you," Sabrina whispered. "That's exactly what I'm doing," Tiffany responded. "Jon, suck on her big, loser tits some more, would you?" I moved around next to my girlfriend, whose tits were hanging slightly away from her body as she leaned forward to finger her rival's pussy. I let Sabrina's right nipple into my mouth and sucked on it gently. Sabrina's tip responded, hardening, while Tiffany continued to taunt her. "You're going to cum, Rin. Do you want to cum?" "You fucking bitch," Sabrina said, her head lolling from one side to the other. I hefted Sabrina's left breast by the nipple and reveled in the groan that it caused. "Mm-hmm," Tiffany replied. "I'll assume that's a yes. You'll cum, but how soon depends on you. I'm going to frig this hot cunt until you can't take it. You'll tell me I own you soon," Tiff said, her matter-of-fact tone surprising even to me. "I could describe exactly what I'm doing, you know," Tiffany said. "Like how I'm using my index finger and ring finger to push those sopping pussy lips apart so I can do this," Sabrina bucked suddenly, and her boob popped out of my mouth. "That's right, my big middle finger on your tiny, hard clit. Imagine what I could do..." I felt myself hardening despite myself as my girlfriend drove Sabrina to the brink. "Please," Sabrina hissed. "What?" Tiffany asked. "Let me close those lips to hear the question." I heard the squelching noise of removal from a wet pussy and looked down briefly to watch Tiff's glittering fingers reflecting the light of the apartment. Tiffany looked up at the struggling Sabrina. "Please let me cum," Sabrina stammered. Her heavy breathing was interrupting her speech, and her breasts were heaving even as I suckled them. "What do I need to hear for that to happen? We've been over this," Tiffany reminded her. I waited with a mouth full of Sabrina's big breast for the response. "I'm going to get you for this, Tiff. You own me for now," Sabrina breathed. "You can do whatever you want with me." "Like this?" I didn't see what Tiffany did, but I certainly felt it. Sabrina lurched forward, then yelped I wondered if I'd bitten her, but she was holding her other breast while she began moaning. I groaned as she then fell backward, and I released her breast to grab her shoulders, shifting a bit to stand at her side. I held her while she came and directed her to the bed, where she collapsed. She was still moaning, and I shook her right breast some more as she came down. "Now we're done," Tiffany said with finality. I felt her behind me and turned. She kissed me, hard, and long, her tongue dancing in my mouth the entire time. When she finally pulled away, I was stirring again. Tiffany felt me against her thigh. "I'll take care of you later," she promised in a whisper. Tiffany passed me to look down on Sabrina. The two sorority sisters gazed at each other before Tiffany lowered her breast to Sabrina's mouth. Sabrina mumbled something but took the offered teat. After a few minutes of Sabrina's loud, aggressive breast worship, Tiffany stood. "Thanks for an amazing night," Tiffany whispered. Sabrina couldn't help but smile. "You were such a good slut." The smile faded and Tiffany turned around to get her clothes. "Over Christmas, you and I are going to tussle again," Sabrina called. Tiffany turned around, a knowing grin on her face. I stared at my girlfriend's breast, noticing that the right breast still shone with Sabrina's spittle. "I kinda figured we would," Tiff said back, and of all the things that Tiffany had said or done, that one caught Sabrina's attention. Tiff grinned and left both Sabrina and me in the bedroom, our mouths hanging open. After Sabrina had left (after a shower to which I was not invited), she thanked us both and walked out. As I locked the door, I turned around to see Tiff on her knees. She pulled down my boxers and sucked my cock into her willing, wet mouth. I groaned and leaned against the door.