Ew, ew, ew EW ew ew and ew. If you think that recognizing you're someone's family member before you hit on them cancels out the creepy incest factor somehow, you are wrong. 'Cause it's still creepy, and at the end of the day, they're also still related to you. Yes, BY BLOOD and probably a few other fluids.
Sorry Billy-Bert Tobaccowell, I know you're super into your cousin Sammi-Jo, but you're gonna have to go back to gawking at those sheep you dressed up in her clothes instead.