As a woman who had spank the monkeyd quite a bit before any kind of sexual experience I can attest that the labia are a seperate animal from the rest of the vagina. Mine are quite large but my husband is still a tight fit during intercourse (which is "largely" attributed to him) but the point is that some women don't loose their tightness even after a lot of sex. Some are just like that and others are really good at kegel excercises.