She finds someone, but with strings.

Later, at night, Lexi has brought several friends over and has a small party going. You scout a few of the girls there out, wondering which hottie she may serve up to you. You keep mostly to yourself, making sure not to embarrass her and ruin your deal. After a few hours Lexi comes up to you and says she found someone, "I'll bring them to your room in a few minutes. She just needs to get ready."

"That's great, who!?"

"That's part of the deal, she remains a mystery to you." Lexi answers.

"Will she know who I am?"

"Yes, she wouldn't sleep with just anyone."

"Well that's not fair."

"She won't have it any other way."

"How do I know you aren't playing some mean-spirited prank?"

"Trust me, she's hot, and you'll enjoy yourself, she just doesn't want anyone thinking she's a slut."

"So you want me to fuck a complete stranger?"

"She's not a stranger, you just won't know who it is. She won't allow it."

"You wanted to get laid, here is your chance, take it or leave it."