Trans girl is the muse of this kinky painting.

The deal between them was simple, he just had to spend every day for her, because the pleasure he got from painting her was unmatched by any of the other girls and guys who had passed through that room. So there was nothing to fear but to accept the money. She did not understand what he saw in her, perhaps it was that mixture of feminine and masculine elements that he did not ask to hide when he undressed in front of her. So when they both realized that all those mornings they had accumulated a desire that there was no way to extinguish other than by fulfilling their perverse desires.