Season 3, season 2 just ended in the raws gotta wait a few months + quite a few more chapters before they fuck (=・ω・=). If you impatient then here u go, the novel Chap 32 https://readhive.org/series/50056/32/ also to give u an idea how much time till they fuck, the translated chapters are at chap 18
Raws are at about chap 26, so still a while to go before they fuck (I hope I remembered correctly cause I don’t remember them fucking anytime before chap 32 so)
okay yea its chap 31-32
and..... when will they fuck