Best fusion ever.

Although this does feel like the concept was somewhat underexploited...

Here's the artist's website if a translator would like to find the artist's name: http://haijindeath.net/

These look a ton better in my opinion when they're not tinted pink like this, but I think uploading fixed ones would clash with the rest of the pool.

Incest is wincest

Marisa x Patchy result reoccurance.

How the hell is this "uncommon" stimulation?

Shadeshark12 said:

How the hell is this "uncommon" stimulation?

They’re being turned on by getting the strings on their third eyes all tangled up.

If the body part is clearly nonhuman and lacks an analog (or is animal ears) and just having that part touched sexually excites the persion in possession of said body part, then it is this trope. (That, and seriously unique erogenous zones.)