1) Adults only 2) Damp 3) Erotic 4) Hazy 5) Hot 6) Humid 7) Muggy 8) Rated r 9) R-rated 10) Salacious 11) Sensual 12) Sexy 13) Torrid 14) Wet 1) Amorous 2) At least R-rated 3) Emitting steam 4) Exuding vapor 5) Feeling great sexual desire 6) Full of or abounding in steam 7) Full of passion 8) Heated 9) Hot and humid 10) Hot and wet 11) Hot or warm and humid 12) Like a Harlequin romance 13) Like a sauna 14) Like a sauna room 15) Like a sexy romance novel 
• (a.) Consisting of, or resembling, steam; full of steam; vaporous; misty.
Steam'y adjective Consisting of, or resembling, steam; full of steam; vaporous; misty. Cowper. 
Steamy is slang for lurid, sexually explicit.
consisting of or resembling steam. · full of or abounding in steam; emitting steam. · covered with or as if with condensed steam: a steamy bathroom mirror. · hot and humid. · passionate or erotic.
hot or warm and humid