Vaginas are the topic.
Vaginas after child birth, to be specific.
As I once explained, the vagina is modeled after those deflated pleated balloons, the durable kind, that you get at the Ex, and it too can take a pounding.
It's pleats, like a closed umbrella, allow for room. Lots of room. Room enough for a baby to be delivered.
So after delivery, how does that deflated balloon hold up?
It's walls hold up really good, but to be honest, the vagina opening does stretch, sometimes beyond its maximum.
A vagina opening after childbirth, will usually be wider. Anywhere from 1 to 4 centimeters.
But exercises will firm up those walls, and will make things feel less roomier.
If you had an episiotomy (a cut made to ease delivery) and your doc was a super seamstress, you may end up with a better vaginal opening than before.
And there is always vaginal reconstruction, known as perineoplasty or vaginoplasty, to lift and firm tissues at the opening.