Als ich nicht widerstehen konnte und einen streich an ihrer muschi spielte, war die Tatsache, dass sie angemacht war.

I noticed. I could look at their underpants as much as I wanted. I got horny when I got under the kotatsu and watched the underpants, so I played a little prank on them. What's that? The trousers are already wet. ...... It seems that they were steamed in the warm kotatsu, sweating just enough, and their pussies became tender.