If your wife's sister has sweat stains on her armpits... If she sleeps with her armpits exposed... You want to sniff them! You want to lick them! You want to rub your dick against them! This work is a representation of such a man's desires! Even though he knows he shouldn't lay a hand on her because she's his wife's sister, his reason crumbles in front of her attractive armpits... No one can stop the man's out-of-control desires... Non-stop armpit romance!