Every time she faces her son's wife, the stepmother recalls her past lesbian desires, and whenever they're alone late at night, she tempts the young bride into forbidden play. She undresses her sleeping daughter-in-law, loses control at the sight of her beautiful breasts, and passionately sucks and embraces her, obsessively teasing her nipples. The bride whispers, "Mother-in-law... when you tease my nipples...", her pleasure-sensitive body greedily craving more of her mother-in-law's caresses. Two pairs of daughters-in-law and stepmothers entwine in a passionate drama of lesbian desire and lust.