If by cuddle he means giving Bucky a rough shove and a hard smack for latching onto him and slowly falling asleep in all that hot water, without giving Zemo the attention he wants, then sure, there will be cuddling. Bucky's probably the only one who would prefer to sit in less than lukewarm water. The heat will just make him whimper.

"What did you choose?" Is it something skimpy? Don't ask him why he assumes that. It's just-- Zemo had been so keen to cover himself up just the once, this morning. After that he seems to have gotten more and more comfortable with... his predicament.

Bucky has only seemed to have gotten more handsy since. More willing to be affectionate in public and in private. More open to touching and talking and being touched back, letting Zemo touch his metal arm and run his fingertips over those scale-like plates, and just the little things he doesn't do, like stroking Zemo's thigh while he's thinking and talking. It's a kind of obliviousness on a whole other level that he can't see how he's acting different.

Maybe he loves the tits. Or maybe he just has very strange ideas of how men are supposed to interact, and he doesn't let himself get affectionate because it's not what men do with each other, because he assumes Zemo doesn't want or wouldn't welcome this.