Some explanations are in order

"Six hundred and fifty dollars." Brianna announce with a proud smile.

You can't resist the urge of teasing her. "Yeah, he didn't want to look cheap compared to the previous guy."

Her smile disappear and she hisses "Oh, come on! Admit I just beat you!"

You giggle and embrace her. "Yeah, you totally did, sis. You're the one who raised the bar this time."

She sighs and push you away, but seems to be less angry at you. "Care to explain how we ended up whoring ourselves out?"

"Well, can we really talk about prostitution if you do not gain anything from it?" Amy jokes. "All the money goes to charity, after all."

"Yeah, besides, we only fuck with the guys we like." you points out. "Otherwise, we give them a show and don't go further."

"Hmm... Technically, we jerked some of those we wouldn't have sex with." the redhead points out.

Brianna takes her face into her hands, but it looks like she's more amused than anything else. "God, how the fuck did I let you bring me into this, and why am I enjoying it?" She suddenly looks more concerned and ask "But you heard the guy, the word is starting to spread out. Won't we get into troubles if somebody from the Sorority hear about it? And can we risk refusing demands from customers if they know how we let others have their way with us?"

"There's a more important question I want an answer to." you tell her in a serious tone. You put a hand on her shoulder and ask "Which hole did he fucked you through? I couldn't see from where I was standing."

Amy burst out in laughters and even Brianna can't help but smile. She sighs and answers "I definitely won't answer to that, sis. Only because I know it will drive you crazy."

"Yeah, it definitely will." you have to admit. After a pause, you ask "Will you answer if I let a customer fuck me in the ass?"

"Definitely maybe." she giggles.

At the very same moment, you hear the sound of another car approaching and your redhead friend start hopping toward it. "Oh, that's my cue."