leaning into the idea that nicky was a bit of a slut in his monastery days, he developed a bit of a skillset, ie he gives fantastic blowjobs. when his relationship with yusuf starts developing, he's feeling pretty confident that he'll be able to show yusuf a good time. except before they get that far, yusuf comes out as trans.

this absolutely doesn't change nicky's feelings. he's exclusively into men but only has history with cis men, so he's at a bit of a loss in terms of making sure he can give yusuf the pleasure he deserves. but then that classic nicolo acts of service mentality kicks in and he fully dedicates himself to learning how to eat pussy as well as and better than he ever sucked cock. yusuf is the very satisfied recipient of all of nicky's practice, which is extensive to put it mildly.

to be clear, looking for no transphobia from nicky about this - he's a little out of his depth learning about a new piece of anatomy so intimately, but he's not grossed out at all and fully understands yusuf as the man he is.

bonus for praise kink as nicolo's skills quickly improve, with nicky getting off on a) joe's pleasure and b) joe telling him how good he is at eating him out.