Am I the only one trying to figure out the mechanics of that monsterfucker art?

It’s a human’s small hands on top of a monster’s big ones. Both hands feature the back of the hands, thumbs in. Ok.

So, assuming there’s fucking going on, the human’s probably on top. From the orientation and position of the hands, both the monster and human are facing forward and the human is behind the monster. But, based on the size of those monster’s hands and forearms, the monster is significantly larger than the human. So, what erogenous zones on that human can make contact with anything interesting on the monster? The best I can come up with is the human riding the back of the monster’s head.

Now, it’s a monster, who knows what kinds of holes and protrusions it might have on its head. And, in fact, being a monster we really can’t make any guesses about its anatomy and body composition simply based on some vaguely hand-like things. Still, monster hands on top of human hands, or monster hands palm down, human hands palm up thumbs in would lead to more easily imagined situations.