Answer: steamiest

AnswerCrossword Clue
STEAMIESTMost passionate
STEAMIESTMost like a sauna
STEAMIESTMost vaporous
steamiestDepicting or involving erotic sexual activity
steamiest(of a place or its atmosphere) Hot and humid
steamiestSTEAMY, covered with vapour
steamiestProducing, filled with, or clouded with steam