Why not breaking the hymen?
Female virginity is pretty much entirely a myth. The hymen isn't a dam or film across the vagina, but rather a flap of skin that rings the circumference of the vaginal opening. It's true that sometimes the flap can be torn or damaged in rough sexual intercourse but if you're gentle and liberal with foreplay it doesn't really happen that often. Just like vaginas and labia hymens are diverse and different between different women, and many women don't have them at all.