18. Quagmire's Dad Instant

: After Quagmire’s friends initially suspect Dan might be gay, Dan reveals he is actually "a woman trapped in a man's body" and plans to undergo gender reassignment surgery.

: Quagmire struggles deeply to accept his father's new identity. Meanwhile, in a notorious subplot, Brian unwittingly has sex with Ida before discovering her previous identity as Quagmire's father. Key Character Details 18. Quagmire's Dad

is the 18th episode of Family Guy's eighth season, which first aired on May 9, 2010. Episode Plot Summary : After Quagmire’s friends initially suspect Dan might

: She is a veteran of the Iraq war and the ex-husband of Crystal Quagmire. Key Character Details is the 18th episode of

: Following a successful surgery, Dan transitions into Ida Davis , an attractive blonde woman.

: Fans often point out a continuity error where Quagmire (born in 1948) is roughly the same age as Ida, making the timeline of her fathering him physically impossible based on show lore.