“The Killing Game”, Tom Paris at some point under the control of Hirogen, mentions Betty Gabel and how attractive her legs are. When the plan to breakout the crew is enacted, Tom is still under the Hirogen influence. Harry is standing in a corridor and is asked what part of Gabel’s body would Tom be looking at if she was there. The answer: legs.

Apparently lots of photographs of Betty Gabel you see her intently displaying her leg(s).