S3, E10: Just as Grace (Debra Messing) 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 (guest star Ken Marino, "First Years") accepts her temporary blight, she cannot return the favor when she is horrified to learn he has six toes on one foot. Meanwhile, Will (Eric McCormack) vies with Jack (Sean Hayes) for the attentions of the same man (guest star Paul Fitzgerald) until each agrees to walk away to preserve their friendship. Megan Mullally also stars.