The male & futa equivalent to my Pussy Eating Monster LoRA, this is Dick Eating Monster (DEM). Somebody asked for this a while back and I recently stumbled across the rule34 tag for the concept (onahole parasite) while collecting images for something else. Should work for men and futas, potentially less stable for furries.

Also on Yodayo and PixAI.

IL_v1: first version for Illustrious, trigger is "dem". Adding "onahole parasite" might sometimes help.

Compatible with descriptions of the dick sucker like "tentacles" and "slime \(creature\)". Only works with cross-sections / see-through parasites.