Is it permissible for a wife to fondle her husband if he asks her to do so while she is making up for missed fasts (Saum Qada')?

Fasting to make up for missed fasts is an obligatory fast. Fondling does not invalidate the fast unless it leads to intercourse or ejaculation. If it is highly probable that intercourse or ejaculation will not occur, then there is no harm in fondling. However, if it is highly probable that the fast will be invalidated as a result, then fondling is not permissible, and the wife is not permitted to obey her husband in this matter. A man is not permitted to fondle his wife if he knows that he will ejaculate.