She fools around with you

"I've never been alone with a guy before John," McKayla tells you as you and her are making out on your bed after the shoot, "MMM...until now, of course."

"We can stop any time you feel uncomfortable McKayla," you tell her as you continue to fool around with her on your bed and you reach for her shirt, relieved to not feel any resistance from her as you yank it off of her.

"UH...keep...going..." she softly moans in your ear, feeling a little unsure about things as you pull down her shorts, leaving her in just her bra and panties as you start to straddle her.

You weren't sure how much further this was going to go, but when McKayla started aggressively pulling at your clothes, you had an idea.

"FUCK...YES..." she hissed, blushing as she hears herself say the bad word when you start to suck on one of her tits, before stopping and taking the other one into her mouth as you do away with her bra and slide her panties down, sliding your hands over her tight, virginal 18-year-old pussy in the process.

"I want to fuck you tonight, McKayla," you tell her as you line your dick up with the pussy you were hoping you'd be breaking in soon, "but we don't have to if you don't want us to."