I think Sebek should get piercings. I feel he normally wouldn't be the type to get them, I feel like he wouldn't like body modifications. Like for me he doesn't give that vibe, but you know who does? Lilia Vanrouge. So in my Sebek gets piercings scenario, Lilia mentions passingly that he thinks piercings are hot, (wich to give Sebek more motivation) lets say Malleus agrees, maybe even Silver too? Idk
Anyway, cue Sebek searching high and low in the entire island someone who would give a 16 year old nipple and clit piercings. His dumbass ends in the most sketchy tattoo parlor on the isle, probably cover up for a mafia or something. He gets them yay! But now...he can't have sex with any of them for at least like 9 months because he wants it to be a surprise, but it still makes him so sad to deny his liege and mentor like that :D