She had her 18th birthday recently and had a huge party. Their parents are rich and were out of town, so we had a huge house to ourselves. We invited as many people possible, and even more showed up. I don’t even know if half the people knew why we were throwing the party, or who’s birthday it was when it came time to sing. As the night went along, I turned the corner to go to the kitchen and bumped into Stacy (the sister). She threw her arms around me squealing. “OH MY GODDDDDD PAT IM SO GLAD YOU’RE HEERE!” It was clear she was drunk, but so was I; so was everyone. She nearly knocked me over when she jumped into me to give me a hug. She began to pull away, her arms still wrapped around my neck. She was wearing a low cut shirt that seemed to be too small for a girl with her chest, and I suppose I looked down for a second too long because when I looked back up she was biting her lip and smiling. “I’ve always had a crush on you, you know.” She admitted to me. “What about Brad?” They’d been dating since middle school. “It’s my fucking 18th birthday and he’s already passed out. It’s bullshit Pat! Besides, I’m an adult. I can make my own decisions.” I looked around to make sure nobody saw us, but I didnt even recognize anyone around us. Fast forward well into the night and we eventually met in her bedroom. She dropped to her knees and took me entirely inside her mouth. It was like she had been starving for it. We had an hour of sloppy, drunken sex. Her tits nearly suffocated me when she was on top, and she begged for me to cum inside her when I took her from behind. She moaned how Brad never fucked her like this. I came deep inside her, and we weren’t using protection. Hoping she is on the pill.