Two Children born in the same Year with the Same Father but Different Mothers.
Guy: Hey , I didn't know you had a twin.
Friend: Yea, we're Fathernal twins, we're born in

the same year with same Dad,

different Moms.
GUY: What, like on ya Father's Side!?
Friend: You could say that.....poppa was a playa!
by Nighn'Jii November 8, 2019
Get the Fathernal Twins mug.