6
Trinity stood there in total shock. My sister's beautiful mouth hanging open, her brown eyes wide in surprise, her lingerie style, cat girl outfit (Jesus, just what kind of party was this when I wasn't there!?) slipping enough that I could make out the tops of her pink areolas. Her short, black hair draping down past the fake ears in her hair. God, Trin was hot when she was in surprised beyond all reason.
Speaking of shock, both Aunt Kim and my cousin, Sara, both climbed off of me with an expression across their pretty faces of, "What the fuck was I just doing?" As they glanced at each other, at me, at my huge cock still sticking up and dripping with my cousin's pussy juices, back at each other again, gulped, and took a stance behind my sister, still naked and doing nothing to cover up their large breasts or swollen, dripping pussies.
Trinity's eyes went even wider as Sara got off my cock and all 10" of my pulsating, veiny flesh came into view. Her eyes went there as she mouthed the words, "what the fuck," and she openly stared at my dick for a few moments before she seemed to remember who's body that cock belonged to and forced herself to look at me again.
"What the fuck do you think you were doing?!" Trinity shouted as soon as our eyes met again. I could tell she was absolutely livid about this.
"Hey! Sara and Aunt Kim came onto me! And can you blame me? Look at how hot they are! They're almost as hot as you or Mom!" As I angrily shouted that at my sister, I realized that Trinity was just as hot as our mother, maybe even more so just because she's younger, but I've just never really thought about her in that way. But looking at her in that sexy cat outfit with her huge boobs peaking out at me, I realized that I would happily fuck her if given the opportunity (really I was so horny then from fucking my cousin and aunt and not getting to cum that I'd probably fuck a tree if it looked like it was interested).
My sister glanced at Aunt Kim and Sara behind her, both of whom were slowly rubbing their own bodies. As Sara looked, Kim was slowly moving her hands up her belly getting closer to her breasts as Sara was slowly running a finger around each of her nipples, they were obviously still just as horny as me, and were probably about to start masturbating before Trinity glanced back at them.
They looked up at my sister as if they were robbers caught red handed, they moved their hands back to their sides, embarrassed.
Trinity looked angry, she could smell the sexual frustration (and pussy) in the air. "If you're not going to put your clothes back on," She said, calmly but obviously angry, "Why don't you go to my room for now. I need to talk to Fred alone." I gulped as she said that, I wasn't sure what was going to happen to me now.
As Aunt Kim and Sara left the room I couldn't help but check out their bodacious asses as they walked away, the door slamming behind them. As I looked back to Trinity, I caught her staring at my dick again but quickly looked away after I looked at her.
"If
you
aren't getting dressed either," Trinity said as she looked back at me, looking me dead in the eyes though I could tell she wanted to look back at my huge erection, but she was forcing herself to look directly at me, "could you at least cover up." It felt like she was pleading with me by the tone of her voice.
I was feeling overly confident and replied, "Hey, Trin, it's my room and if you don't like that I'm naked then you can leave." Part of me wondered if I didn't cover myself in front of my sister and would want to "do stuff" with me like Sara and Aunt Kim had done. I knew it was just pushing my luck, but Trinity was so fucking hot in that cat outfit I didn't care at that point.
Trin stood up and for a second I was sure she was about to walk out of the room and call my bluff, but she didn't. She glanced at my cock again and I thought for a moment that she let out a slight moan but I might have been imagining it. She sat back down and said with her eyes forcefully closed, "Why the fuck were you in a mask and fucking our cousin and aunt? I mean, who the fuck does that?"
I decided just to tell her everything. I sat up in the bed, my cock smacking me in the belly, still hard as a rock. I told her how our step-mother Jo came up with the plan, and then seduced me, which made my sister gasp but after that she just stared at my cock in my lap openly, her eyes never leaving as she listened. I then told her how Sara first seduced me and sucked my cock and Aunt Kim showed up and we fucked and then all three of us fucked, "But then you caught us," I finished my story, "They didn't know it was me before that."
Trin finally looked me in the eye then, "So, this is all because you were trying to fuck Mom?"
I nodded.
"You know," Trinity said as she stood up in front of me, "I know Mom is hot, but she's old, you know?"
"What? Mom's not old!" I shouted, ready to fight my sister to the death if she dare insult our mother's honor or beauty again. I stood up in front of her, my cockhead poking her in the belly but I didn't care, "How dare you talk about Mom like that!"
My sister licked her lips, she looked down at my big cock sticking into her between us, she glanced back up at me and said, "I just mean, I've always wondered why you had, pardon the expression, but a hard-on for Mom so much," before she said this next part my hot, older sister wrapped a hand around my thick shaft and gave it a few strokes, "when you have a hot older sister right next door..." And then, my sister dropped to her knees and sucked my cockhead into her mouth.
"Holy fucking shit!" I moaned in intense pleasure, "Trin, you suck cock so fucking good!" I couldn't believe how good she was deep throating me. It was at least as good as Sara's was, which makes me wonder if they exchange cocksucking tips with each other. Anyway, Trinity started to roughly suck my cock deep into her throat, making obscene gagging sounds as she did so. Fuck it was so hot, and I felt myself getting ready to cum, but there was no way I was going to cum without fucking my sister's pussy first.
