What I take away from this is that Fubooty is always groomed to the point she can throw on a swimsuit without a worry. Which implies, to me, that she's prepared for the lewd at any time.
Which means he better not screw this up or Fairy-san is going to lose her mind.
If this fairy was going to lose her mind, she would have lost it long ago. She's been playing the long game, and as we've seen previously isn't afraid to give a (literal) push to these lovebirds when need be.
Plot twist: Tokonatsu x Fairy is the real OTP and the last panel of the manga will be them accepting it with a confused Bucky in the background.
Plot twist TWIST: that Fairy is both the source and personification...wait, Fairy-fication? of both Bukki's shipgirl powers and Tokonatsu's Admiral Powers. If that fairy ever decided the status quo has been prolonged long enough, she'll pull a heroic sacrifice that will bring the two back down to normal civilian.
Hnn...Some hours laterFu... Fubuki?FAIRY-SAAAAN!?Ah! Good morning!Ah, well, this is...A-Anyway!
It's about time we set off, isn't it!I-It's fine!
This is a swimsuit, after all!Good morning. I really did sleep the day away ther...And it's not the first time I've worn it, either!!It's got even less material...It was inside my bag there... and... erm... it's better than what I had before, and...