really now? I fully assumed they had already shagged at some point, just off screen. they've been living together and sleeping in the same bed for weeks/months and only now they are sure enough that they like each other enough for sex. like come on.
Well it is the virgin media fantasy..
That this chapter was as detailed as it is, is already a pretty novel thing.
Remember when the MC of Death March hooked up with a woman in the beginning, only to have the next 100s of chapters be pure virgin bait and nothing else? Novel to Manga audience target changes are rough...