Lisa starts it

Lisa says, "Fuck yeah," gets out of her seat, and falls onto you clumsily, kissing you and running her hands along your chest as she moves her legs to straddle you on the couch. "God, I've wanted you since we got into town, I'm already so fucking wet." Lisa kisses you again, and you recover from your shock and kiss her back.

Allison, bare-chested, leans over towards you and Lisa and starts to pull up Lisa's T-shirt. Lisa breaks her kiss with you momentarily and lets Allison remove her shirt, tossing it aside. Allison quickly unsnaps Lisa's bra, and then licks and rubs Lisa's perky tits, while Lisa slides her hands up your sweater and undershirt and pull them over your head. She tosses her head back as Allison sucks her nipples, smiling playfully.

You look over and see that Brittany and Amy are standing, and are engaged in a passionate kiss, the two skinny girls tonguing each other deeply. Brittany helps Amy out of her buttoned shirt, still locked at the lips. They break momentarily to remove their shirts, then Amy leaps onto Brittany and wraps her legs around her, resuming their hard making out. They each remove the other's bra while kissing, and the two bras fall to the ground.

You look back to Lisa, who's kissing Allison, and has begun grinding her crotch against yours. She breaks the kiss, looks into your eyes and says, "John, you've got the only cock here, and I want it first. But, before we fuck, I want to ask you a favor. It's kind of weird, and you don't have to if you don't want, I want you in me either way. But....."

"What is it?" you ask.