I was 17 and I couldn't get laid and one night My parents went out and me and my little sister 14 got into the alcohol. we got drunk and I blabed on about how I couldn't get laid. She laughed and came over to me, sat on my lap and kissed me. I pulled away and she said don't worry I've had sex before. And I dunno I guess I was jealous that my sister had sex way before me and then the rest was a blur until I woke up naked next to her. She freaked out and we haven't talked since. I'm now nearly 19.