Answer:
(Fatwa: 167/167/M=1433)
It is haram to have intercourse with wife from her backside. In the same way, if she is experiencing menstruation then too intercourse is haram and unlawful in that condition. Oral sex is bestiality and makrooh. One should avoid it as well. However, it is lawful to touch one’s wife; kiss her and have intercourse with her.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
