Baby daddy with benefits (BDWB)

A baby daddy with benefits is a person whom a woman shares a child or children with, and goes to bed with. In which, they do not have a romantic or friendship type of relationship and only take about the child outside of sex. They sleep with each other whenever it’s convenient for them or when the children are in school/daycare.

Guy: Hey what you doing?
Girl: Nothing much, my Baby daddy with benefits (BDWB) is coming over tonight though.