@borderlinefreak Old Xian has already shown Xi and Jian Yi touching crotches while drunk, as well as He Tian stripping in Mo's dream (and it's shown in one of their future chapters that they're engaged/fugging), so honestly even if it's not shown, it's not too far fetched to get something still heavily implied. Even just them waking up together and Mo panicking would be enough to satiate most people, lmfao.
*unzips di*k*