Mine was awesome and horribly fucked up at the same time. I was 15, she was 25, and the alcoholic daughter of a state senator in the district of the microscopic little country town I was raised in.
I had skipped school that day to get drunk and faded at a local creek with a small crew of homies that ranged from my age to 19. While there, our group hooked up with another (but older) group getting fucked up, so we all chilled together and I wound up talking to homegirl for most of the day. I was very ready, and none of the people in the older crowd were strangers to me because our town was just that small... everyone knew everyone.
I straightened up and cleaned myself off to get back home the same time as I would have if I'd gone to school, and got her to meet me at one of my neighbors houses later that evening where we knew a brother and sister we could hang out and drink with (if any of you read Red State or are familiar with Erik Erickson, the right wing pundit on CNN... it was his house, he didn't booze but his older sister did and we could all barge at their place even with their folks home).
I fucked my stomach up over there by drinking grape Mad Dog and eating nothing but Cool Ranch Doritos... I accidentally puked in Erick & his sisters upstairs bathtub while everyone was out on the front porch. I cleaned up the mess, used up all of their mouthwash and came back down minty fresh to continue on.
I was still holding my shit together, talking game and seeing this as a major possibility. Some more friends called us to tell us they were having a little house party, so me and girl went. After an hour or so, we snuck off and did the deed... wasn't awkward for me at all, I was hyped... she was having a good time too, but it was really on the DL because she was sort've popular back then and it would've been bad for her socially (and legally) to get busted with me.
By the time we were done and had come back downstairs, I noticed it was roughly 4 in the morning and I knew I was in deep shit... my parents were fine with me chilling wherever around town as long as they knew where I was, but they had no fucking clue at that point... they still thought I was at Erik's house.
So, she drives me home, and when I get out of the car my dad busts out being PISSED... he and my mom had looked for me and shit, and by this point I was sweating booze so I couldn't hide the fact that I was fucked up. I told girly to get the fuck out of here, but my dad knew her car and immediately got on the phone and called her fucking dad (she had a little apartment behind her parents house).
My dad was all over the dude for letting his 25 year old daughter roll around with me, getting fucked up and all... it was really bad. They even met the next day to talk about it. I kept telling my parents that the blame was on me... everyone in town knew I drank and smoked except my parents I guess, but either way, it was really really fucked. Luckily the story never broke out in the news or anything, which would have been fucked because I really liked the girl and did everything I could that day to get that ass. After that night though, it was done... never talked to her again, and her dad never ran for reelection even though my family promised to never bring it up (my dad actually liked the guy and would have voted for him again) but he had political paranoia.
The thing is, a week later my dad straight up asked me if I'd fucked her... to which I said "yep." Then he told me if I'd just let him know where I'd been, none of the drama would have happened, and he ungrounded me when he found out I'd smushed her. He just made me promise to never let my mom know.
After everything had settled down, I became a king in my little town. Word had gotten around that I'd hit it, and I swear it was like the South Park episode where all the old dudes that knew were like "Yeeaaahhhh!" Hell, I was like that too. I went on a vagina rampage after that and through college up until I met the girl I'm married to.
I certainly don't regret a thing... even the bad shit that came with it. The events surrounding my first time made it unforgettable, and now she's a leathery old bag making babies with a douche I knew back in those days.