There are no particular rules and laws either in foreplay or in intercourse. The only laws and rules are the ones reached by the lovers by mutual and often unspoken understanding. Whatever is pleasing and satisfying to both the husband and the wife is right and proper; and whatever is mutually displeasing is wrong. The only limitation to this general rule would be any Shariah rule which goes against the wishes of the husband or the wife.
Muslim Twitter Asks: Is Oral Sex Permitted? | Amaliah
Whilst Twitter may not be the platform to discuss fiqh, Imams like Suhaib Webb who is known to answer matters of fiqh via Snap chat came to respond to questions that subsequently arose, from whether oral sex is permitted and outlining that a Muslim woman can divorce on the grounds of sexual dissatisfaction. Khaled HAS to say this. Because of his stature, he cannot publicly announce he actually gives head. In his world, the mouth and tongue are used for recitation of the Qur'an and for the remembrance of Allah.
There are differences of opinion in this topic. Many scholars believe that oral sex is permissible, but it is disliked. The group of scholars who view oral-genital contact as permissible is mostly because there is no clear command in Hadith and Qur'an prohibiting such act. Prominent Muslim scholars like Yusuf al-Qaradawi share this view.
A curious religious debate is raging in Egypt. The question is: should you keep your clothes on when having sex? It began when Dr Rashad Khalil, an expert on Islamic law from al-Azhar university in Cairo warned that being completely naked during intercourse invalidates a marriage. His ruling was promptly dismissed by other scholars, including one who argued that "anything that can bring spouses closer to each other" should be permitted. Another religious scholar suggested it was OK for married couples to see each other naked as long as they don't look at the genitals.