This wasn't the first time my step cousin (with permission) my tight little cunt. Me and my step cousin have hung out with each other all our lives. Both totally straight. One night he came over and we started talking about sex with girls, then teased about sex with guys. That turned into, not teasing so much, but more like curiosity and then questions, like, "You ever been a little turned on by seeing a guy's big, thick, hard, veiny, 9 inch dick?" and "You ever saw a really well-built, toned guy naked, and thought, 'He's pretty fucking hot?" or, "Ever wonder what a hard cock in your mouth tastes like....or feels like in your ass, fucking you?" We both realized we were checking out each other's changing bulges, from our growing and now obvious hard-ons. We got so horny we took off our clothes, and some instinct or something kicked in and we started touching each other's naked body. My first understanding of how hot this expansion of my sexual potential could be. It's like we weren't "us" any more. We licked each other's smooth, naked bodies, sucked each other's cock, he even bent me over the pool table, spread my ass cheeks, and I felt, for the first time, the incredibly erotic and indescribable feeling of a hard, wet tongue licking my asshole. He would spread my ass cheeks wide with his thumbs, wide enough to literally get his lips on me, and fucking kiss my hole, dear God that was hot! He would flatten his tongue below my hole and drag his wet tongue up my lapping up my like a dog, then I'd feel his finger easily slipping into my sloppy wet anus, and he would fuck me with his finger. Then two fingers, then three. Then he'd harden his tongue and enter me like his tongue was a dick, as far as he could, and then wigglfe it inside me. Jesus, I thought I might lose it. I could not believe this was happening. I also could not NEVER have remotely calculate how fucking mega goddamn HOT this was. My asshole being eaten was soooo hot, and even better, totally unexpected...... it made me start to realize there are incredible pleasures, sexy, erotic, and, up until now, unknown pleasures, that can come from attractive members of my own gender, from losing taboos and inhibitions, and from opening my mind. Getting rimmed like that was the single hottest thing I had ever experienced. I had never been that fucking turned on, aroused, horny and ready to discover anything new that might concern my naked body....then, still bent over the pool table, I heard him say, "Stay just like that. Don't move. Spread your legs a little." Taking one more big, wet, sexy dog-lick all the way up my and over my dripping asshole, he stood up behind me, and a near adrenaline was about to happen, because I knew he was about to turn my asshole into a very tight pussy. He was really going to fuck me! He said, "Ok, don't move, and just relax. After making my grateful asshole sloppy wet, and very well lubed, and his dick, harder than it had possibly ever been, he pressed the head of his cock, - his big cock, btw, at least 8½ to 9 inches, and thick - against my asshole, and toyed with me, pushing the head of his dick against my asshole, making me think he was gonna penetrate me and I was finally going to feel his cock inside me, teasing me to the point of making me insane with lust. Then, I felt it. I felt his enormous cock, every inch of it, sliding into me until I took all of it. He pushed even further into me and I could feel his balls on my ass. Then he pulled it back, and just when only the head of his cock was left inside me, I felt it being pushed back into me, repeated many times until he found a rhythm. And as I felt my step cousin's big cock hitting my ass harder and harder, I knew this wasn't his first time. But it was mine. And it wouldn't be the last. So hot I will NEVER forget that rush of excitement and erotic, forbidden pleasure. I remember thinking, hey, if I start doing guys, as well as girls, I'll get laid twice as much.......I like that kind of math.