Pregnant women go through a phase of extreme horniness.
They NEED that dick... Like nasty style.
Before my son was born, her doctor actually told me "fuck her and fuck her hard". I'm not kidding or exaggerating. He actually said that.
He was a late birth and just as I put him in her belly, I rammed him out.
Also, what's not hot about a pregnant chick?
Yeah, she's got a swollen belly but her tits are also swollen and she's horny as hell.
Sure you gotta do stupid shit like go fetch weird food at two in the morning but so what? Horny crazy chick activate.