You make them barter for it.

You smile wide and decide to keep the pair guessing. You line your dick up with Marie's pussy and rub the outside with your dick. You do this to get her moist, but find that she's wet already.

"Yeah, fuck me," the redhead says.

You move your dick up to Tiffani's pussy now, giving her the same treatment.

"Oh yeah, fuck me first instead," she moans.
"No, I want it," Marie says.
"How about we make a deal? Whoever makes me the best offer, gets it first."

"He's a naughty boy," Tiffani says. "He's messing with us."
"Not that we mind," Marie replies, kissing Tiffani on the lips. "Want to fuck me while I lick this chocolate princess out?"

Tiffani has a sly smile.

"I have a better offer," she objects. "Give me that dick first and I'll help you make her cum super hard when it is her turn. I know all of her weak spots."
"Not to bargain against myself," Marie says, "but I actually like her offer. You do know what I like, hot stuff."
"Deal," you say, thrusting your cock into Tiffani's pussy in one go.
"Fuck- he's a big one! Austin wasn't kidding this morning," she exclaims.

You make a note to ask about that later, but instead focus on pleasing this little Cheerleader slut.
You grab onto her hips and start to really pound her.

All you can hear is the combined sound of the girl's moaning and your balls slapping against her tight ass with each thrust.

"You'd better make me cum super-hard," Marie says. "He sounds like a great fuck."
"I will," Tiffani says. "Honest to- oh shit- God! You may not even- ooh- need me."
"I'd never turn you away."

Marie grabs Tiffani's shoulders and begins to kiss her all over her face and neck.
This just makes the moaning louder.

Speaking of moaning, you look away to see Diane smothering Megan with her ass in their 69.
Nearby, Austin is driving what sounds like a strong orgasm out of Darla.

Turning your attention back to Tiffani and Marie, you recall a move that served you quite well with Diane.

If it worked for the Mother, you wonder how well it will work on her daughter.
Curious, you decide to try it out.

You run your hands up her body and find her wrists. She seems curious at what you're doing, but does nothing to stop you.
You grab her wrists and pull back on them.
This forces her shoulders back and allows you to fuck her even deeper.

You pick up the pace, fucking her like a jackhammer. She moans even louder in appreciation.

Aiding you, Marie has moved down to kissing the girl's exposed breasts. Her body arching gives the redhead access to her dark nipples, which she takes advantage of.

"Right there! Right there! I'm fucking cumming for you," Tiffani exclaims.

Marie keeps kissing the girl as she experiences the throes of her orgasm. She holds her tight, keeping both of them steady.
The girl's pussy squeezes your dick like a vice, but you just barely hold back your own orgasm.
Not yet, you think, not yet.

"That was a good one," Marie says, "but you ain't seen nothing yet."