Will Power makes a good point. If she is of legal age then maybe you won't end up pleasuring Bubba from 3 to 5 years.
But what do you expect from her? I mean a relationship at age 15 or just fun. At 15 a Big Mac is serious. A zit if the end of life as we know it and fries with that Big Mac is a relationship.
Never Squat With Yer Spurs On