How I Became My StepBrother's Slut

Brandon took his time enjoying Susan's first time. Since he could control his own release he didn't rush anything, something I'd been more than a little pleased by in the last few weeks. It hadn't taken long for me to lose count of Susan's cries of release, and I wondered just how long Brandon would keep going before calling me up. I was more than a little concerned about what he'd make me do next, especially with Susan in his bed. Still, I couldn't help but feel a twinge of anticipation at the pleasure I'd likely get to enjoy. This was certainly getting to be so horribly bizarre. Even as I sat there casually playing with myself and listening to my friend cry out in pleasure from my brother's attention, I knew just how wrong it all was. It seemed that every day brought Brandon more confidence and sent me even closer to becoming his perfect slut. I couldn't even summon the same outrage I had before. Every glorious fucking just made me ask why I wanted to fight him and every time I could summon up fewer reasons.

Finally, I heard Brandon call out my name and I jumped up from the couch and ran up the stairs, feeling my big new boobs bouncing wildly with each step. His door open and I braced myself for what I was about to see. My eyes trailed up from the floor, over Susan's hastily discarded clothes to my brother's bed. Susan was on her hands and knees on top of Brandon's sheets, panting softly and shifting her hips back against Brandon. Her naked flesh sparkled with perspiration and the musky scent of sex hung heavy in the air. She looked up just as I came in and I watched as she turned red with embarrassment but didn't stop bucking back against my Brother. She looked radiant like that, humping her hips while her round little boobbies bounced with Brandon's thrusts. I don't know what came over me, but I couldn't deny just how aroused I was getting watching Brandon fucking my best friend.

"Terri, help me, please! Brandon's placed some kind of spell on me!" Susan groaned as she slipped herself back onto Brandon's cock. "I can't stop! Oh god, this feels so good! Please help me stop!"

Brandon just smiled and plowed into Susan a couple times, bringing squeals from her lips. "Come on, Susan, I know you just love this. Doesn't she look hot, Terri?"

I just stood there and watched for a moment as Brandon continued thrusting into Susan. I was simply captivated, having never watched two people make love before. It wasn't long before I realized Brandon was right. "Oh, yeah, Susan, you look so hot right now! I bet you're just loving Brandon's nice big cock inside you, I know I do."

"Terri! How can you say that?" Susan cried as she humped herself back against Brandon again. I could imagine just how she was feeling, but I couldn't deny my feelings, not in Brandon's presence. I'd been there myself on that same bed both in rapture and in shock at how Brandon could control me.

Brandon grabbed onto her, pulled her back up to his chest, and wrapped his arms around her waist giving me a full view of Susan's naked glory. She was still blushing fiercely, but that didn't detract from her beauty, if anything it made her look even hotter. I'd never felt any attraction to another girl before, and I'd seen Susan naked in the shower at school plenty of times. Yet now I felt myself tingling just looking at her sexy passion swept little body. Her titties were just perfect, cute and perky with pink little nipples poking out from them, showing just how horny she was. I didn't know why, but they looked just perfect for squeezing or sucking and I found myself wondering just how Susan would taste. My eyes drifted between her legs next, and I was greeted with the sight of her hairless little pussy wrapped around Brandon's nice hard shaft and I giggled. I knew just how Susan must be feeling right then filled with my brother's cock and marveling at the feelings it could stir. Her naked lips looked so cute stretched out around his cock that I wished she could see it.

"Susan! You shaved for him didn't you?" I squealed as I remembered when I'd shaved myself in the first days of Brandon's influence. I hadn't known why at the time, but it hadn't taken long for him to tell me. I had to admit her pussy looked real cute like, all hairless and aroused, impaled on a nice big shaft.

Susan just looked away in obvious shame. Oh, man, she was hot when she did that. I didn't understand it, but I was just getting off on how ashamed Susan was of her behavior. For a moment I could remember just how wrong all of this was, and that we were both being used, but no sooner had the thought crossed my mind than it was pushed away by Brandon's compulsions.

"Don't feel bad, he made me shave myself to!" I chimed back and pulled my panties down with a quick tug, showing off my own hairless pussy. "I like how smooth and cute it looks, and yours looks just great wrapped around his cock. I wish you could see how sexy your little pussy is right now."

"Terri!" Susan whined. She shuddered visibly as another wave of crimson washed over her face.

Her cry touched off another sense of wrongness in me and I latched onto it this time. I was lusting after my own best friend even as my brother was taking advantage of her. I just wanted to go up to her and give her the biggest French kiss I could on her pouty little lips and press our naked bodies together. This wasn't me, I realized as I ogled Susan, I wasn't a lesbian, but I knew who was responsible for it.

"Brandon, why did you have to make me a lesbian?" I whimpered as I tried to pull my eyes away from Susan's sensual curves. I wasn't entirely sure I wanted to object, but I couldn't just let my brother get away with making more changes to me without at least saying something.

"I didn't make you a lesbian, just fully bisexual, sis. That way you can join in the fun as I induct other girls into our new club, just like Susan." Brandon explained. That didn't surprise me. He would have as much fun conquering my friends as watching me play with them before finishing their induction.

"NO!" Susan yelled and actually started to fight against Brandon's hold on her. "Oh god, no I don't want to! Don't let her touch me!"

"What are you worried about, Susan, I'm going to make you bi too, it'll be great." Brandon consoled her as he reached up and cupped her boobs. I had a pang of jealousy as I watch him playing with her cute titties, I wanted to play with them! She had been my friend the longest, and while I couldn't give her a nice hard cock like Brandon could, there were plenty of other ways we could play.

"No, please, it's not right!" Susan whimpered. Then I watched as her eyes seemed to get really large all of a sudden and Susan shuddered from head to toe. It took me a moment to realize she was staring at my naked body and that Brandon had just changed her. "No, I don't want this, please, Brandon."

"Come on Susan, you have to admit Terri is just the sexiest woman you've ever seen, right? I mean just look at those tits, and that nice tight ass of hers, she just screams for sex and I bet you can feel it now can't you?" Brandon prompted Susan while he continued to play with her.

"No, I don't like her big bouncy titties and lickable ass, Brandon, I'm not a lesbian!" Susan cried then put her hands over her mouth in shock. I could see her blush again and knew that wasn't what she had wanted to say. Brandon must have done something else to make her say things that way.

"Don't worry, Susan, I just made you give me your honest assessment of Terri's features, so there's no use denying your feelings. Now tell me what you want to do with that little tongue of yours." Brandon prompted again. I knew he'd probably also made her unable to refuse his commands and I could hardly wait to find out just what we were about to be doing.

Susan flinched, and for a moment I wondered if she might actually keep her mouth shut before she opened up and answered him. "I want to lick her pussy and see how sweet her love juices are while I make her come for me. Then I want to suck on her big nipples and lick her big tits and after all that I want to give her a big kiss so she can taste herself on my lips and tongue."

By the end she was nearly whispering and her eyes were fully on the floor. I felt sorry for her, there were plenty of reasons and right now I just wished she'd accept her new feelings. I knew she would, every time Brandon changed me, it took a few minutes for it to sink in and become real, and I knew Susan would accept the new feelings soon. Then we'd get to play, and be even better friends.

Brandon looked at me with his sly smile, nodded towards Susan, and puckered a little. It took me a second to understand his meaning and then I smiled. I quickly hopped into bed, pulled myself up to Susan, and looked her right in the eyes, with my warmest gaze.

"No, Terri, please..." Susan sputtered before I leaned in and covered her mouth with mine. She struggled for a moment. Then I felt her give in and start kissing me back. I'd never kissed a girl before, and it was really sweet, she was so much more tender than any boy had been and when she slipped me her tongue I was floored. I pulled myself closer as our tongues danced and felt her cute little boobies press into mine. We stayed locked together like that for a couple of minutes before Brandon tapped me on the shoulder and I pulled back.

"So is she a good kisser, sis?" Brandon asked as he reached up and played with Susan's tits. I watched as she went red with embarrassment.

"Oh yeah, and she even slipped me her tongue!" I giggled. I'd just kissed Susan and I could hardly wait for more.

Susan just hung her head in shame. I fought down the cold chill that ran through me at her expression, hoping that she'd accept this quickly so we could play. I didn't want her to suffer, I just wanted to make love to her.

"Okay, Susan, why don't you get down on your hands and knees again so I can finish reading you?" Brandon suggested and let go of Susan. She suddenly smiled and seemed to glow as she fell forward onto the bed, moving into position with Brandon still lodged firmly inside her. She leaned onto the bed with her hips into the air and looked back at Brandon.

"I'm ready." Susan giggled. I wondered what had come over her, but realized she wanted to confirm her own sexuality again.

Brandon grabbed onto her waist and started thrusting into her with long deep thrusts. Susan smiled in this sexy vacant way that told me she just loved his treatment. I smiled, happy that she was finally getting into this.

"Isn't he just wonderful?" I giggled as Susan bounced in front of me. My hands were busy working on my own hot spots as I watched them. I was a little jealous of Susan right then, my pussy was so empty and she was getting hers filled. Then for a moment I realized everything that was happening, that I was drifting further towards becoming Brandon's devoted little sex toy and Susan was right behind me. I shuddered, half in revulsion and half in passion. Sure, this is all wrong, but it felt amazing, and nothing I could do to fight would work.

"Oh yes!" Susan squealed with his thrusts. I smiled, knowing that she was enjoying herself despite everything. I could even see her humping back against him and wiggling her cute little rear back at him every time he stuffed her to the brim.

I stood there just watching my best friend and my stepbrother fucking and felt somewhat left out. I was naked and horny too after all. Then I noticed Susan's little boobies bouncing beneath her and came up with a plan. I quickly slid myself up onto the bed and started sucking on one of her titties while I played with the other.

"Oh, God!" Susan cried out as I wrapped my lips around her hard little nipple and started suckling on her. The taste of her sweat and flesh was just perfectly succulent, and I enjoyed licking her tender little nub as she bucked back against Brandon. I'd never really felt up another girl before, but I just loved the soft, tender feel of her boob as I rolled it in my hand. I did my best to be gentle too, just they way I liked to be fondled, and I could swear that Susan was quaking even harder with my attentions.

Then I heard Brandon's groan and I just knew he'd shot off his load inside Susan. I pulled myself away from her sweet bosom, poked my head out below hers, and smiled up at her. "I bet you never had a guy squirt in you before have you? Isn't it great?"

Susan just looked down at me with a vacant smile and nodded. I could tell she was lost to her own pleasure, so I reached up and grabbed her head and pulled her down to me. I pressed my lips to hers for the second time and sparks flew. I could feel Brandon step away from Susan and she instantly fell onto me. Susan engulfed me as she fell, her arms fell around my sides and her legs wrapped themselves around mine. As our lips danced Susan started writhing against me, her hands exploring my body wildly. I wasn't about to let her have all the fun and soon we were both exploring each other with abandon.

I'd never dreamed of making love to another woman before, but now it just seemed so natural. Our bodies were both quaking with shared passion and my hand found her hairless mound the same instant her hand found mine. We started playing in unison, our hands on our pussies as our bodies writhed together. It was so wonderful feeling her delicate little fingers parting and caressing my most intimate folds with tender expert care as I did my best for her. It was so unlike Brandon's clumsier fondling, Susan knew just how to touch me and I returned every favor.

I don't know how long we writhed together like that on the bed, our bodies quaking in unison with every release. It was all so wonderful that I could hardly believe it was happening. Every once in a while I looked up and saw Brandon watching with a wide smile on his face. I didn't doubt he loved this as much as we were, he had a front row seat to a lesbian love in and I hoped it was everything he'd wanted.

Finally, we both fell back with one last cry of release, both too exhausted to continue. Susan simply pulled herself up to me and snuggled up to my side, pressing her boobies into my arm and her crotch against my thigh. Brandon looked down at us again, still smiling.

"That was great, you two take a nice nap, you deserve it. I'm going to take a shower, and we'll play more later." He instructed and strolled out of the room. I smiled as I felt myself drift off to sleep, it was just a wonderful idea to take a nap, and I loved having Susan's sexy little body pressed against me. Sleeping with a lover was just a wonderful way to cap off a great bout of sex I thought wistfully as I closed my eyes for a good rest.

***

The feeling of something wonderful massaging my pussy brought me back to the waking world. I was already quaking with pleasure and it took me a moment to work past the sensations to realize that someone was licking my pussy. Brandon had done it to me once before much to my immediate satisfaction, but this didn't feel like Brandon. Then I remembered what I'd done before taking my little nap and I looked down to see Susan lapping between my legs eagerly.

I must have moved oddly because she looked up at me. She looked up at me warmly then gave me a cute little wink before plunging her tongue between my tender folds again. I spread my legs wider for her and moaned out at her wonderful caress. Her tongue played along my nether lips and toyed with my sensitive nub with an exquisite tenderness. I couldn't help but be washed away by her skillful treatment. It wasn't long at all before she'd sent me over the edge, and I rocked with a wonderful orgasm as she continued to lick me.

Susan gave me a few moments to recover before she pulled herself back up and laid on top of me, pressing our bodies together wonderfully. She looked wonderfully content as she gazed down into my eyes before she spoke.

"I hope you don't mind, Terry, but you smelled so nice and I just had to taste you." Susan giggled. "Oh, god, listen to me, I can't believe I said that. How is Brandon doing this to us?"

Susan wiggled against me seductively for a moment before bringing her hands up and starting to fondle my wonderfully big new boobies. She played with them using the same tender care she'd used with her tongue earlier and I just let myself enjoy her caress. I knew she must have been a wonderfully gently lover before all this, and she was making extraordinary use of that ability now.

"I don't know, but I can't help myself. I don't know if I really want it to stop anymore, it's just so amazing." I moaned as Susan rolled my tender flesh in her hands. "Do you like my new boobies?"

"Oh, yeah, Terry, I can't help playing with them, and I love how big and pointy your nipples get now. They're just like two big signs that Terri's a horny little girl." Susan giggled as she started rubbing her thumbs across my hard nips to emphasize her point.

"Oh, that's nice." I moaned. Then I reached up with my hands and cupped Susan's cute little titties in my hands. "I like yours too, they are just so cute and I just love sucking on your pink little nipples."

Susan smiled deviously for a moment, then squirmed herself on top of me until she could lower one of her little boobies over my mouth. I eagerly took the hint and started sucking on her nip. It was so great, better than yesterday because now it was just us two, and Brandon wasn't there to distract us.

"Oh, Terri, this is so cool. I can't believe I'm really doing this." Susan cried out as she pressed her tit into my lips. I knew she must love this, just like I did when Brandon sucked on me.

"Hi girls, enjoying yourselves?" I heard Brandon ask just as I was nibbling on Susan's taught little nip. I instantly pulled myself away and turned to him smiling. He was standing there perfectly naked, and I just shivered as a slew of sexy thoughts ran through my head.

"Yes!" We both cried out in unison. Shocked, I turned to Susan and we giggled at having answered him like that.

"Feeling better, Susan?" Brandon asked as he walked up to her and reached for her chest. Susan thrust out her bosom, and mewed as he cupped her boobies.

"Yeah, I really wish you'd let me stop though, Brandon." Susan sighed as he kneaded her flesh. I could already smell her arousal. Of course I could smell myself too, Brandon was just incredibly sexy and I couldn't blame Susan for reacting like that.

Brandon just smiled and looked into her eyes. "Did you ever want a bigger bust, Susan? Terri really likes her new boobs, don't you Terri?"

"Oh, yeah, Brandon, they're great. You really want Susan to have a pair like mine?" I asked in wonder. I'd never really thought how Susan would look with a nice rack like mine, but the thought was really appealing somehow. Of course, I figured part of that was Brandon again. Obviously he liked his women to have big chests, and he wanted me to enjoy them as well so I would like to play with his other girls.

"If she wants to." Brandon smiled and looked into Susan's eyes. "Well, how about it? I can always change them back if you don't like them."

I looked over at Susan anxiously. I could see she was seriously considering it. Of course, I knew that Brandon didn't really give choices when it came to something like this. Susan would do what he wanted, but he had to make her think it was her choice. I just braced myself for seeing my sexy little Asian friend with a big bouncy pair of tits.

"Only if I can change them back, okay?" Susan asked. I could see she was both curious and worried. What girl wouldn't like to try out a new bust size if she could change back with just the snap of her fingers. Of course, her bust size was really in the hands of Brandon, and I doubt she trusted him much more than I did when it came to things like this.