Fluttershy is peeing her wetsuit yet again. She really needed to go, and really enjoys the warm release as it spreads through her wetsuit. Rarity can’t see why Fluttershy likes it so much, but she’s fine with it, she knows from Twilight that wetsuit wettings aren’t considered “weird” and even if it was she knows how much Fluttershy loves it. She’s a bit awkward standing right next to Fluttershy able to clearly hear the sound of her peeing really loud, but she really likes Fluttershy even when she’s wearing a wetsuit that smells like pee and wouldn’t let that put her off from giving her a hug. She also envies Fluttershy slightly that she can just go right where she is instead of having to rush to the bathroom every time.
 
My last Fluttershy wetsuit pee edit.