My sister and I lay together naked in our room on her bed. I was spooning her from behind, holding her curvy body tight against mine. My softening cock pressed against her warm, soft ass. We'd been together for over two years at this point, and we were still making love multiple times a week. Zoey was a big, beautiful goth and I was a skinny nerd. We still lived in Dad's apartment, hiding our relationship from him and the rest of the world.
"Hey baby, can I tell you something...naughty? A little secret?" she teased, her voice barely above a whisper.
"Always." I was intrigued. After more than two years sneaking around as a couple, I thought we had already shared all our secrets.
"Okay, but you have to promise not to get mad."
"Hmm?"
"Well, lately - not while we're doing it of course - but lately I've kinda been...thinking, fantasizing, about...Dad."
Why Dad? Was I not good enough for her anymore?
"Zack? Are you mad?" She gripped my hand, concerned she'd upset me.
"No, beautiful. I just...Dad?" I guess I shouldn't have been surprised. Zoey was the one who first suggested we get together, so incest was obviously a big kink for her. "He's just...old. And he's getting bigger."
"Yeah, but so what? He's sexy in his own way. Just like you, my sweet little geek," she teased. "There's just something about the idea of being under him," she continued. "Of fucking my own father. Feeling his cock inside me..."
My cock twitched. I'm a weak guy, okay? I felt myself getting hard again while my twin sister described her fantasy of having sex with our father.
"Mmm, you like that idea too, don't you, baby?" Zoey moved her hips, rubbing her ass against my growing erection. "I'd let you watch, if you wanted. Watch me getting pounded by our Dad."
I grabbed one of her large, soft breasts and started grinding against her. I groaned softly in agreement.
She rolled onto her back and kissed me hungrily. I swiftly got on top of her, sucking her tongue, lining myself up with her wet pussy for the second time in 15 minutes.
"You wanna see our Dad's cock in my mouth, don't you?" She moaned as she started moving her hips, fucking me.
"Mmmm, watching you swallow the cock that made us," I agreed, my dick coated in my own fresh cum while I fucked Zoey.
"Oh fuck yeah, baby." She rubbed her clit while we fucked. "And you'd let him fuck me, wouldn't you? Both of you fucking me together..."
"Fuck yes," I agreed. Then, before I knew what I was saying, I told her, "I'd guide his hard cock into your eager pussy." I couldn't believe what I said, but it didn't matter. It turned both of us on more than ever.
I felt Zoey's pussy tighten around my cock. I fucked her faster and harder, both of us turned on by my unexpected admission.
"Oh shit, I'm close, baby," whispered. "Tell me more, tell me more," she demanded.
"Oh God, babe," I grunted. I could feel her getting closer, tighter. "You and me, on our knees..."
"Yes, yes," she pleaded.
"Taking turns sucking Dad's dick," I blurted out, squeezing her big tits while I came, pushed over the edge by my sudden gay admission.
She came immediately after me. Our bodies shuddered in unison; me pumping my second load of cum into her for the night, her eager pussy squeezing it all out of me. Both of us breathless, speechless. Spent.
When she'd finished cumming, I slipped out of her and fell back onto the bed beside her. We embraced, facing each other in the darkness.
"What...was that?" I asked.
"I think that was my baby admitting he's a bit bi-curious," she grinned.
"Yeah? Well, I mean, maybe only in fantasy. Not in, like, real life."
"Oh, don't be like that," she chided. "It's not the fucking 40s anymore. It's okay to admit these kinds of things, Zack. Especially to me."
"Really?" Over two years in, I was still worried about scaring her off; I was her brother, after all. For 99 percent of girls, that'd be enough of a dealbreaker.
"Of course, you idiot. You're my brother, and I'll always love you. Besides...I brought Dad up. And I've always thought two guys together is hot."
"Well...okay then. And I love you too, Zoey."
"So..?" she prompted
"So, what?"
"So...are you a bit bi, bi-curious, babe?"
"I don't think I've ever thought about it before. But, after that...I'm thinking maybe? Or maybe just for Dad. I dunno, maybe I've got some soul-searching to do. Saying those things...it really did turn me on. And not just because it turned you on."
"See? That wasn't so hard, was it? And I love you just as much, if not more than before. You need to stop worrying about scaring me off." She was only 20 minutes older than me, but sometimes she felt like 5 years older.
"Yeah...okay." I kissed her softly. I was exhausted. "All right, goodnight, Zoey."
"Goodnight, Zack. Love you, always."
"Love you always too," I replied before drifting off.
Surprisingly, after that night, Zoey and I went back to normal, never talking about Dad in a sexual way again, even as part of foreplay. Nevertheless, it took me a couple of days to not feel awkward around Dad at home. The next morning, I was a bumbling idiot, barely able to look him in the eyes.
At 5'11", Dad is a bit taller than me, and he's a bit more solid. He works for a removalist company, so he got pretty buff doing that, but as he got older, he moved more into the office side of the company, so he'd started losing his muscles. As a father, he was good - not great. But as I grew up, I realized he was away so much because he was working so hard. He worked so he could afford to keep the apartment and keep putting food on the table, with enough left over to still buy us nice presents for birthdays and Christmas when we were kids. It was just hard growing up because it felt like just me and Zoey a lot of the time. But spending so much time alone together after school also made Zoey and I bond much better than we otherwise would have. So in the end, I got it.
On the other hand, Dad was a hard guy to get to know. Buying him gifts was always an ordeal for us. What do you buy a single guy who you only see a couple hours a week, who never had much of a social life, who never told you anything personal about himself? For years, Zoey tried to get him to open up more, with very little to show for it. She eventually chalked it up to being "a generational thing" and grudgingly admitted defeat.
But how do you bond with a Dad who never came to your school on parents days, never watched your sister's debates, never came to plays where you did all the lighting and sound? I know I said I "got it" but for me, there was still a touch of childhood resentment inside me that I wasn't sure would ever really go away.
Looks wise, I could see where Zoey was coming from. And where I was coming from too, I guess. Like I said, Dad was tall and solid, even if he was starting to lose muscle and swap it for more of a gut. His green eyes were tired, but kind. He shaved his head bald and grew a (mostly gray) beard that he kept trimmed short. Meanwhile, I had a full head of hair and probably couldn't grow a beard in 5 months. And he had those big, rough hands. All of which is long way of saying that I jacked off in the shower while thinking about him a couple times, all part of the road to accepting my bisexuality.
But the thing I think we both appreciated about Dad the most was that he never made us feel like failures, moochers or weirdos for still living with him. In our shared room with our single beds. I'm sure plenty of other parents would've split us up and kicked us out well before we hit 24, but not Dad. And I don't think he ever suspected Zoey and I were together. As a parent, why would you? It's not the kind of thing you normally think your children would do together. No, I think he just assumed we were so close because for a long time, we were all we had. And that's true; Zoey and I were best friends for a long, long time before we ever became lovers.
But after weeks of thinking about Dad, whether I was really attracted to him (very much so), and guys in general (again, yes), and never talking about it with Zoey, I'd started to wonder if that one night's events were just an incredibly vivid dream. And then, one morning over breakfast, Zoey finally broke the silence. Dad, of course, had already left for work before we woke up.
"You know that night, when I mentioned...my thoughts about Dad?"
Like I could forget. I nodded.
"I know we haven't talked about it, but I've been thinking about that. Like, a lot." She sounded almost embarrassed to admit it.
"Oh, me too, don't worry."
She looked relieved. "And, I wanted to talk to you about it."
"Um, okay...what about it, exactly?"
"Well...it's just..." She took a deep breath. "I think we should do it. For real. Or try, anyway."
I took a few mouthful of my coffee while I tried to work out what to say. In the end, I settled for, "Zoey. You can't be serious, babe."
"A hundred percent. It's the right thing." She reached across the table and clasped my hands in hers.
"Why? What happens to us? I thought what we had was special." I sounded like a whiny child and hated myself for it.
"It is! And it'll always be special. We lost our virginities to each other. Nothing will ever take that away from us. But Dad gave up, like, everything for us when we were kids. Fuck knows the last time he ever had sex. If this happens - and that's a big 'if' - try to think of it as saying thanks to him for holding everything together after Mom left."