Transmasc Sanji coming out to the gang and of course everyone is incredibly supportive. Chopper even manages to get him the One Piece equivalent of testosterone (may be actual testosterone but also I feel in a world where there’s a viral illness that gets you all boobed up there may be funnier options). Hurrah!

…. Except hat Sanji is afraid of needles and his T-shot is absolute agony for him every time. He can’t do it himself. The only people he trusts with it are Chopper, Nami and Robin. Until one day Usopp asks him if he can try it, because those three are currently otherwise occupied and Sanji has been kind of moping about it all day. Sanji agrees thinking it will be hell and prepares himself to constantly tell Usopp “NOT THERE!” “Make it quick!” “Please for the love of god don’t hit anything important I don’t want- …. What are you doing?”

He locks eyes with Usopp whose tongue is poking out, a pen in his hand, drawing on his leg. “Taking aim.” Sanji looks down at himself to see the bullseye painted onto his thigh. “What-“ The sniper pulls down his goggles with a comically serious expression “Target locked.” “Pff.” “Three. Two. One.” It still startles Sanji despite his laughter, but the needle pierces his skin like butter. Usopp forgoes the theatrics for a second to make sure he does the rest of the injection correctly, just like he had watched Chopper do it a hundred times before. When he pulls back his expression remains dead serious. “Target eliminated.” And that’s when Sanji breaks out into hysterical laughter “God! GOD that’s so stupid!” He needs a minute to calm himself down again, looking at his friends beaming face, happy that it all went down so smoothly. “Thank you…” “What can I say?” Usopp responds, twirling the needle between his fingers and making show out of blowing imaginary smoke from its tip “I’m an expert marksman.”

I've always loved the headcanon of Sanji being scared of needles because of Germa's experiments,,, And this is just so sweet. He finally gets to be himself around his family!! And he's thrilled and so so grateful that Chopper and the others are willing to help him go through this. But of course, the fear of needles doesn't go away easily.

Not that he actually tells people about it. He only says he trusts Chopper and the girls more when it comes to gentle, medical stuff and he doesn't want the clumsy idiots in his crew to get near him with something sharp. Which is, you know, perfectly understandable. So nobody thinks twice about it.

But Usopp knows. Usopp knows because he has seen Sanji close his eyes tightly while doing this, whether it's with the girls or Chopper. He has seen him shaking before getting into the sickbay. He has seen Sanji sighing deeply, trying to calm himself down minutes prior. He has noticed him being a bit too emotionally exhausted after doing it. Usopp knows exactly what fear feels like, so he knows Sanji is scared.

So when nobody else is free to help him, Usopp asks. He knows he won't let the others do it (for obvious reasons) and he's tired of hearing Sanji complain and also feels a bit sad and guilty seeing him like that. The whole thing about Usopp being all dramatic and theatrical about it is so perfect for them. Usopp acts silly to distract him and Sanji used to think those things were stupid and for kids. But-- There's just something about Usopp here.

He's doing this act for him. Because he knows he's scared and he cares and he's being oh so gently with him. Besides, he's so close to him, too. Sanji starts to wonder if he has ever been so close to him before and why the hell he looks so pretty now. Not even with the girls and Chopper he gets so distracted. So much that the whole thing happens quickly. Painless. And it's so damn dumb that Sanji can't help but laugh.

So between Sanji's laugh being the only noise around and startling Usopp with a new feeling inside of him, and Sanji realizing he has never been more comfortable and happy around another person... A new relationship blossoms. So I guess Sanji will be the one asking Usopp for help with his T-shot more frequently now.