Fused Zamasu would be one of, if not, the BEST dragon ball characters to f**k. First off, he's a deity, so it would obviously feel amazing, he also has that godly dihh. Also, in the picture, I did an estimate of what his body would look like. As you can see he has a slim waist that you can easily grab as well as thick, juicy thighs. Based off of his thighs I can also say, with confidence, that he has a fat, juicy ass as well.
He also has NEVER touched himself before, so he would cum gallons every load. Based off of his aura and Kai anatomy, Fused Zamasu's dick is at least 7 inches 3 centimeters erect, and his balls are at least one pound each. His cum would also taste amazing and feel amazing too, since of course, he is, once again, a deity, and so he does have that godly dihh. On top of this, Fused Zamasu also has fairly long hair so you can get it wet to make it drop down so that you can pull on his hair while you rail his fat juicy ass from behind while he's on all fours.
Not only would it feel amazing to bend him over and f**k his fat juicy ass from behind, it would also feel amazing for him to bend YOU over and f**k YOU from behind since he does have that godly dihh. Not only this, but if you're not into men, he is once again a deity and has access to the super dragon balls, so he can turn himself into a woman pretty easily. Not only would he now gain a fat pair of tits as well, but his already breedable build of thick juicy thighs and a fat plump juicy ass would get improved even more.
This is why I think fused zamasu is the best and most f**kable dragon ball character.