S1·E5 Three Men and a Smoking Diaper
Aired March 23, 2001
Synopsis
The Lone Gunmen become reluctant and rather inept nursemaids to the illegitimate baby of a drunk, philandering, saxophone-playing Senator whose campaign-aide girlfriend died in a suspicious accident.
This is the episode where, as Bruce Harwood put it in one chat, "Tom gets his nipples sucked!"