Who do আপনি think Jr.'s dad is?
It can't be Grim because skelotons don't have reproduction systems.
I don't think it's Billy because then Jr. would have had কমলা অথবা blond hair. That and Mandy hates Billy, so her sleeping with him wouldn't make sense. আপনি gotta have standards.
It isn't Nergal Jr. because then Jr. would already have demon powers. Also Nergal Sr. didn't let Mandy abort Minnie,(which is why she's alive.) So if Jr. was his grandson, why would he let Grim kill Jr. and not Minnie if they are both his grandkids?
So who could it be? When আপনি answer please state why.