If you like her and she likes you, I see no reason why you two can't be together. Don't worry about how many guys she's slept with. Unless you are looking for marriage, chances are this relationship won't last anyway. View this as the perfect opportunity for lots of sex. At least you won't have to wait until she is ready. If she's had multiple partners, then she's probably picked up a few "tricks" along the way. Now if she sucks in bed, then get rid of her. Any girl who's f*cked several guys and didn't learn anything is a waste.