There are a lot of ways to describe Sam: Cute. Platonic gal-pal. Witty. Master schemer. Quarter Jewish (she keeps that rather quiet). Tiger in the sack (her words but as a dare she had it printed on her business cards).
Sam lives in the same building as the guys in a loft down the hall. While each one of them would probably kill for the opportunity to bang her, it’s never gonna happen so they’ve all resigned themselves to a lifetime of just hanging out.