I'm 45, married and I have two kids. My daughter always has friends over at the house spending the night, whether my wife is home or not home. When this happened, it was just my daughter and I, and her friend Theresa. It was not meant to happen, it wasn't planned, it wasn't even talked about, it just literally happened. It was nothing I'd ever considered trying, but I won't lie, her friend Theresa is a fucking hot looking high school girl, yes, I'd fantasized about what it'd be like with her, but no, I would have never acted. She's the type that if it failed, or if she wanted to rat me out, the whole world would know. At least I thought.

My daughter and Theresa had been hanging out in the living room, and my daughter Amanda said she had to get to bed, because she was falling asleep. I gave her a kiss, and saw her walk upstairs. I told Theresa I was going to take a shower, and I'd be done in a bit. Said if she was still up, we could hang out and watch a movie or something. She just said sure, innocently enough, and I went into the shower.

I was in there about 20 minutes, and I hear the door open. I just said "hello" and I didn't hear anything. I figured it was a cat. We have a couple. I knew my wife was at work, and my daughter was sleeping, so I shrugged it off. And then I see the shower curtain move, so I peered around, and it's Theresa, sitting on the toilet peeing. I looked at her and said with a laugh "what are you doing?" and she laughed and said peeing. I wrapped the shower curtain around me, and said well thanks for that. When you're done, don't flush, because it'll send the hot water crazy. She laughed and said well OK then.

And about 30 seconds later, no flush, but the shower curtain pulls back, and I swear to God, Theresa is standing there with nothing on. I looked at her and said "holy shit. What are you doing?" and she pulled the curtain back. I freaked out. I said "Theresa, you can't do this. Not with Amanda home. Shit, not if my wife could possibly come home and catch us. Holy jesus." and she laughed and just said "come on Mr D. Chill". I just said "I'd like to. But here you are, with nothing on, and what the fuck do you think is gonna happen if Amanda came down, or wanted to know where you were, or I was? Or God forbid, her mom comes home". Theresa just laughs and says "She's at work. Amanda said she called like an hour ago, and said she'd be home about 8ish in the morning. And if we wanted to have her wake up us, she'd cook breakfast". I just stood there. And I don't know why I did it, but I looked down, and stared at her busy. I remember my daughter telling me a story about years ago, when they all stayed at this cabin, and that Theresa had a hairy bush, more than anyone else, and we'd had this huge laugh. She looked at me, and caught me looking, and laughed and said "I haven't shaved. Sorry" I just shrugged and said "God. This really can't be happening. Please don't get me caught". She just said "well I hope not to" and she was standing there. I was looking at her big chest, her hairy bush, and her skinny stomach, and I felt my dick getting hard. She didn't say anything. I just looked, and pulled her into the shower, and I said God I'm going to regret this. This is gonna be the stupidest fucking thing I could do" and she shoved me against the shower wall, and kissed me. I felt my dick slide up against her pussy hair bush, and we started making out hard. And I'm talking hard, heavy, no breathing, panting, gasping, and pushing and groping all over. I had my hands on her tits, tweaking her nipples, cupping her boobs, and running them all over her. She backed off, gasped, and said holy fuck. God. Holy shit. I just pushed her against the wall and started doing it again. She had her legs spread a little bit, I shoved my fingers inside her bush and started rubbing. Hard. I heard her go Oh shit. Oh God. And she pushed against me hard, looked at me, her face contorted, I kept rubbing, pushed my two fingers inside her, her face crunches up again and she says to me fuck dude, I'm cumming. And she went nuts. And I mean, she's panting, gasping, and breathing really hard, while I'm watching her cum. Intensely. Her whole body is shaking like crazy.

When she got done, she got on her knees, took my dick in her hands, and started to suck. She's got her hands on my balls, rubbing and squeezing, and she's sucking hard. Then I feel teeth. She's nibbling on my shaft, rubbing her teeth up and down my dick. It was the most intense thing I'd ever had a chick do. And she's pushed up against me, we're all over each other, kissing like crazy, and she says fuck me. Please. i want you to fuck me.

Then I got scared. No protection. I haven't used condoms with my wife in 15 years. I said "Theresa, I can't do it. I've got no protection" and she said then pull out. But please. I want to feel your dick inside me. Please. And she stands in front of me, bends over, and I'm staring at this beautiful little fucking ass, with her pussy hair poking through from behind. It was fucking stupid. But I couldn't help it. I just shoved my dick inside her. I heard her go "oh fuck. Oh my fucking God' and she starts breathing hard. I started thrusting slowly, and I heard her say oh god, I'm gonna fucking cum again. And she did. I had my hands on her hips, I'm pumping inside her, and I couldn't control it. I yelped "Theresa, I'm gonna cum" and she squeezed her ass together. I felt it squirt out in bursts. I started pushing hard, and I gasped I'm cumming, and I kept squirting. Squirting. Squirting more. And finally shoved my limp dick against her, up inside, and went "oh god" and just stood there up against her.

She stood up, and turned around. I stared at her, and I was standing there against her, my dick limp, and pushed up against her body. I just looked at her and said "God. You're fucking amazing" and she smiled and said "that's the best fuck I've ever had. I'm not kidding dude. You can't let that just be a one time thing. You're incredible fucking amazing." I said yeah, the feeling is mutual. And she said I gotta get outta here before Amanda finds out I'm gone.

In a flash, she's gone, towel in her hand, I'm staring at her naked ass, crawling out of the shower, and I'm just in shock, knowing I just fucked her. So far, it hasn't come out. Nobody has said a word. I fucked her one other time, a couple of days ago. And it's really bad. I can't stop thinking about it. She has the hottest fucking body of a girl I've ever had sex with. She said she'd be over this weekend again, and I want her so goddamn bad.