not only is she ugly, something she can fix with makeup and a little effort, but she's also super shy. so shy that she doesn't know how to talk to guys. she only trusts her father, so it's to him that she ends up making a proposal to fuck.
The man sends her away at first, but then he thinks better of it and ends up agreeing to what he had offered her. he opens her hairy pussy, fucks her on all fours and ends up cumming inside his daughter, who loves to feel all the milk entering her pussy.