I'm pretty sure what she meant was they would do 'that in bath(room)'.
Remember that chapter where they checked the apartment?
Also, I wonder why there's still people who think they had not done the deed yet.
Like, why???
This is so thrilling... even more so when you consider the MC's personality.
I don't know if he's only bluffing or really can win.
I shall patiently waiting for the next chapter!
Wow, now that I played Among Us, this Greed plot become really interesting.
Furthermore, the fact that there's a Greed sigil-user gave this another layer of mystery.