I didn't know you'd be punished for your child becoming a kaafir. Quite interestingWell your friend is low IQ for busting in her raw without wearing a condom if he simply just saw her as just being "pump and dump material" and not wifey material per say. Now he has to face the consequences. That zina life comes with a price.
You must advise him to marry the girl and raise that seed. If that child grows up to be a kafir or even worse getting involved in crime or becoming a drug addict then Allah will punish him severely in the afterlife