Fathwa - Ruling on Foreplay during a Make Up Fast

Question
Is it permissible for a wife to have foreplay with her husband in the
case of a make up fast if he requests it from her?
Answer
All perfect praise be to Allaah, The Lord of the worlds. I testify
that there is none worthy of worship except Allaah, and that Muhammad,
is His slave and messenger.
Make up fasting is considered obligatory fasting. Therefore, one
should not invalidate it. Foreplay, in itself, does not invalidate
fasting. What invalidates it is intercourse or ejaculation. If one
knowsthat most probably neither of these will happen, then there is no
harm in engaging in foreplay.
If the husband or wife know that fasting will certainly or most
probably be invalidated due to any of these things, then foreplay is
impermissible for them. Itis impermissible for her to obey her husband
if he demands this from her.Shaykh Ibn'Uthaymeensaid: "It is
impermissible for a man to engage in foreplay with his wife if he
knows that this will lead him to ejaculate because some people
ejaculate quickly. As soonas he begins foreplay with a woman or kisses
her for example, or something of the like, he ejaculates. To this type
ofmen we say: 'You may not engage in foreplay with your wife as long
as you fear ejaculation.'" [Majmoo' Fataawa Ibn 'Uthaymeen]
Allaah Knows best.