Maybe I'm weird, but I see all my friends as romanceable so I'm always is seduction mode.
I mean, are you really friend with someone if your pp doesn't get hard when you talk with them?
Are you really close to someone before masturbating together?
I don't know, if you think the contrary maybe you don't really have friends.
Like, is playing games together the most you expect of a friendship? Don't you want to talk about your deepest feelings and sexual desires?
I think you do, but you are just scared to be rejected, to look like a pervert.
People like feeling desirable and loved.
If you talk honestly, if it comes from a sincere place, they will accept the feeling.
It's only my experience, maybe I get away with it because I have 100 in charisma but like just consider it.
Ask yourself the question "Do I want to fuck my friend"