No you shouldn't date your sisters cousin because its wrong and he or she is related by blood.
Theirs notting wrong dating your cousin because back then sisters and brothers would date or even marry
Your 2nd cousin
Ummm... I think so because the sister's cousin has to be related to you unless she is a stepsister.
Maybe if shes hot
Your second cousin.
Cousin
He is your cousin
Your mothers sisters Granddaughter is your second cousin
Your first cousin
cousin
Your cousin.
You!