Is it permissible to marry my fiancée after I have touched her mother with desire?

Touching one's paternal uncle's wife with lust is an ugly and forbidden act from which one must repent. However, it does not prohibit marriage to the paternal uncle's daughter, according to the majority of scholars. Direct contact, short of intercourse, and kissing with lust do not prohibit marriage to the ascendants or descendants of the person kissed, whether she is a wife or a non-mahram woman.