The mouth immediately snaps back to its pre-stretched state because Within six months after delivery, the typical young woman's vagina feels
The vagina is pretty stretchy on it's own, it 'doesn't need stretched out. girl for years, and it didn't really do much as far as 'stretching' it goes.
Myth: Having Lots Of Sex Will Make Your Vagina "Stretched Out". to a child that they exist because you took a joke in a late-'90s teen sex