1439 Alluring No on May 6, 2010 Chapter: Sorta Bad ThingsCharacters: Bob the Beholder, Dusk the SuccubusLocation: The Black Mountain Related Comics ¬ 1200 The Agony Of Defeat 0207 Harpy Hat Trick 0375 Turg The Lonliest Minotaur 2139 Reinforcements 3068 Protest
Succubus: "So… where exactly are your sex organs?"
Bob: "…My *what* now?"
Succubus: "Oh dear…"
https://www.yafgc.net/comic/0004-just-ew/ suggests that beholders are capable of sexual reproduction somehow