Sure, but you turn it on her.

"One more round and you can have any other girl here that's up for it," Jayne says.
"Did you even ask them? I mean, being DTF is one thing, but a sex **** is another," you say, "Did she ask any of you about this first?"

All of the ladies shake their heads, some more annoyed than others. The real slutty ones- like Harmony and Dee- seem like they would be up for it anyhow.

You approach Jayne more closely now.

"I have a counter-offer for you," you say.
"I'm listening."
"I pick someone and if I can beat your time with any girl, you will be both my sex **** AND my wingman, as it were. You have to help me get other girls to play with you and Trish. Deal?"
"Deal. Who do you pick?"

You respond by lightly pushing Jayne so that she falls back onto the mattress. You climb on top of her, but don't make another move just yet.

"I choose you."
"What?!?"
"You want me to be your sex **** if you win, so you certainly can't be opposed to being with men, especially me. I wouldn't be your first, would I?"
"Well, no."
"Good. Then I pick you. How do you like to be taken?"
"I'm picking. Doggystyle then- just so I don't have to look at you."
"Whatever," you say, grabbing her assertively and turning her over.

You push your cock into her pussy, finding it obviously wet after two (or more) orgasms. You rub her ass and start to fuck her.