Your father's first cousin's son is your second cousin.
Your father's second cousin's son is your third cousin.
If your are asking about your fathers cousins who are in a removed cousin relationship to your father, their relationship to you be more complex, with two different possibilities in each case.
Second cousins once removed.
They share a common Grandparent. That makes them first cousins.
basiclly there called brothers .-.-.-.-.-.-. basically* for one... and two no, they wouldn't be called brothers. If it was their parents sons then yeah, but if it's the sons of brothers then they'd be cousins. That's practically like saying one brother got married and had a son, then the other did too and had a son as well. The relation of the sons would be cousins.
You are each others cousins.
He would be your second cousin.
Your son and your niece are first cousins.
cousins.
I think the kids would be second cousins
They are cousins!!!!!Actually second cousins.
Your sister's son is your nephew His sons are your grandnephews, and his daughters are your grandnieces.
Cousine
Your son and your nephew are First Cousins. The children of your nephew and the children of your son are Second Cousins to each other.