I notice there's no sex forum anymore so I'm just going to put it here as I'm curious if other women have found similar.
I hadn't noticed this overly until DH pointed it out and he is right; after the birth of each child, my anatomy seems to have shifted slightly in a way that has improved sex for me. DH enjoys anal and was a bit of a fantasy for him so I occasionally would let him but I never really liked it, just tolerated it. But after DC 1 was born suddenly I did enjoy it.
Then after DC2 was born I now seem to be able to have multiple orgasms which I never had before, was always a one then done in that area.
It's just something I've found interesting and an unexpected gift from the torture that was childbirth for me and I wonder if it is actually a thing that others experience too?