Screenshot of Gary and Larry from https://www.youtube.com/watch?v=7s_f-H7x0iQ

Gary is a towel attendant in Leisure Suit Larry 6. He is extremely flamboyant and actively flirts with Larry, as seen in the video below. If the player engages in any act that is interpreted as a sexual invitation to Gary, the game ends (see here for a description).

LGBTQ  references in this game series: 

Leisure Suit Larry (1987): Comedian’s jokes

Leisure Suit Larry 3 (1989): Bobbi and Kalalau; Suzi; Cross-dressing; Lesbian Cannibals

Leisure Suit Larry 5 (1991): Sign in airport

Leisure Suit Larry 6 (1993): Gary; Gay Game Over; Cavaricchi; Shablee; Larry’s Reaction to Shablee

Leisure Suit Larry: Magna Cum Laude (2004): Spartacus gay bar, Ione, Luba

Leisure Suit Larry: Box Office Bust (2009): Damone LaCoque

Citations:

1. Gay Option. (n.d.). Retrieved from http://tvtropes.org/pmwiki/pmwiki.php/Main/GayOption
2. Leisure Suit Larry 6: Shape Up or Slip Out! (n.d.). Retrieved from http://en.wikipedia.org/wiki/Leisure_Suit_Larry_6:_Shape_Up_or_Slip_Out!
3. Leisure Suit Larry 6: Shape Up Or Slip Out! (n.d.). Retrieved from http://bonny.ploeg.ws/lsl6.htm
4. ‘Leisure Suit Larry 6’ Walkthrough. (n.d.). Retrieved from http://www.supercheats.com/pc/walkthroughs/leisuresuitlarry6shapeuporslipout-walkthrough02.txt
5. Sierra Chest. (2009, December 20). Leisure Suit Larry 6 (part 4/25): Gary the towel boy. YouTube. https://www.youtube.com/watch?v=7s_f-H7x0iQ