The people here posting about second thoughts about banging that girl are not being realistic with themselves.
She's 20, she's in perfect shape, she's got more experience than (hopefully) your last 5 ex's combined. And she's STD free since they test for that **** religiously in the industry. She shoots porn a grand total of 6 times a year, the girl you picked up at the bar may have just sucked her boyfriends ----- 20 minutes before coming out to cheat on him.
I'd bang her anytime off camera. On camera, i'd have to consider career consequences.