dad roulette
You and your friends all cum into a bottle and inject it into a woman. When the baby is born, you do a DNA test. The dad is whoever it turns out to be.
My friends and I all cummed into a bottle and injected it into my cousin. The baby looked like me, so I’m the dad.
My brother and his friends cummed into a bottle and injected it into his wife. The baby looked like his friend.
My friend’s friends cummed into a bottle and injected it into his girlfriend. The baby looked like his best friend.