Scuba gear and underwater

title^

Kobolds... awesome little things and I already know they're in the game but because their size and weight they're susceptible to many kinks, being small and light they're easily fuckable and HOLDABLE.. you could put Kobolds in a way where they could be held by the customer and just straight up used like a cocksleeve... pluss since it's a thing in most games and D&D they could have an affinity for Dragons or the customer could more likely be Dragons

Example: cocks, legs, arms, toes, fingers, tail, tongue, chest, belly, inner vagina or head

Either for tickling by dragging the flog down the body or for whipping.

Some may find this as a turn-off.

Similar to tentacles, urethral sounding, cbt, and oviposition, often but not limited to, a penis. The tentacles or whatever jam in through the urethra and you can see them distend through the urethral canal all the way through in to the ballsack as they play/squeeze/eat the testis.
This fetish often interplays with internal views of anatomy and whatnot, everything from cross-sections inside the penis, to x-ray views inside the ballsack.
Could be fun considering it's also a cross-section of a lot of fetishes.
This fetish also uses maggots or insects, which I am not a fan.

Using saline to increase size of genitals and other body parts.