That one felt very in-character for both of them, there's nothing there that would be out of place in the novels, outside of the explicit stuff. The author even managed to capture Euphie's carnivorous top energy perfectly!
Tsukino is always so gung-ho and enthusiastic early, despite knowing better at this point. You have to hand it to the girl, she has a spirit that cannot be crushed :O
^^ It better be for eating ramen/soba or there will be trouble ! :P
^ you'll end up in one of the lesser circles of hell, but I'm not offering you any cannoli at dessert :P
Suletta being so impossibly selfless feels very in character.And yeah, I don't think making science babies would be much of an issue in that universe; cloning is already a thing after all :P