Billy (Fallout 2)

Billy is an inhabitant of the Den in 2241.

Background
Billy is a patron of the Hole, he pimps out his wife and looks for people to pick up for sex.

Other interactions
Billy will attempt to sleep with a female Chosen One or offer the services of his wife to a male Chosen One.

Appearances
Billy appears only in Fallout 2.

Behind the scenes
If you read his dialog carefully, you will notice he makes mention to rolling in the sack with Dave, and one of his sexual catchphrases is "...getting Handy again", plus he also mentions Dave's "porn wing". This all suggests a romantic relationship with Dave Handy.