Will & Grace - Season 3 Episode 10 : Three's A Crowd, Six Is A Freak Show 2006

Just as Grace seems to be on the verge of a promising relationship, she undergoes a minor medical procedure that leaves her with an embarrassing ugly sore on her lip, but even though her new beau accepts her temporary blight, she cannot return the favor when she is horrified to learn he has six toes on one foot. Meanwhile, Will vies with Jack for the attentions of the same man until each agrees to walk away to preserve their friendship.