[Kevin]

Fatherhood is not about making a baby... It's about taking responsability for it. I think the biological father and the 'father figure' in this case should both pay a share of the child support.

Child support is not punishment for having kids and 'losing' a custody case.. It's to provide for the welfare and well being of people that you are responsible for.

If he has no visitation rights, etc... then no.. he shouldn't have to pay anything. If he is still the acting father figure then yes.. he should.