Islam allows for us to have a pleasant time when it comes to sexual intercourse but there are certain boundaries in place that are not to be crossed.
Anal Sex is considered a major sin in Islam. It is a filthy act that doesn’t fulfill any purpose of marriage. This practice is not just known to us now but from the Quran we know that the People of Lut were trapped in the same sickness and filth and Allah punished them severely. Khuzaymah bin Thabit (may Allah be pleased with him) reported that Prophet SAW said “Indeed, Allah is not bashful of the truth. Do not have intercourse with women in their rectum.” (Recorded by An Nasai)
Ibn Abbas (may Allah be pleased with him) reported that the Messenger of Allah SAW said “Verily, Allah does not glance at a man who performs intercourse with another man, or who performs it with a woman in her rectum.”
Intercourse During Menses
It is impermissible to have sexual intercourse with your wife during her menses and post-child birth bleeding but all other activities are allowed. So you may do all that you please except for skin to skin contact between her umbilicus and knees or Entering her vagina during this time period which are Haraam until she has taken her cleansing bath at the end of her menses.
Quran: Surah Bakarah Verse 222 “They ask you concerning (intercourse during) menstruation. Say, It is harmful (to both partners), so keep away from women during menses.”
Ayesha (Radiya Allahu Anha) said: "Allah's Messenger (Sallallahu Alaihi wa Sallam) used to order me, while in a state of menstruation, to put on an Izar (loincloth), and then, he took delight in me" . [Reported by Imam al-Bukhari].
Abu Hurairah (may Allah be pleased with him) reported that the Messenger of Allah SAW said “A person who goes to a soothsayer and believes what he tells him, performs intercourse with a menstruating woman, or performs intercourse with a woman in her anus – he has surely disbelieved in what has been revealed to Muhammad.” (Tirmidhi)
This is a complicated issue as the practice was not known to the early Muslim, so there are no clear answers. So following the principles of Islamic Jurisprudence the Scholars have come up with the following ruling for this issue of Oral Sex:
It is disliked by the scholars because it is the practice of the disbelievers.
Oral sex should not replace normal sexual intercourse and should only be a form of foreplay if practiced.
No swallowing of Semen or Ejaculation is allowed. Precum is also Najis (impure) and is not to be in contact with the mouth. The vaginal liquid is also Najis (impure) and cannot be in contact with the mouth of the man.
Should not be done excessively as it causes harm to the mouth or other parts of the body and therefore should be avoided.
Exposing Intimate Details
A husband or wife is not allowed to talk about the details of their intimate sessions or anything related to it amongst others. This should be a private matter and is considered a sin. Not to mention how unhealthy this is to your marriage as it fosters mistrust and dishonors both of them in front of others.
Abu Sa’id al Khudri (may Allah be pleased with him) reported the Prophet SAW said “Indeed, among the people who will have the most grievous position before Allah on the Day of Resurrection is a man who, after he intimately approaches his wife and she intimately approaches him, he exposes her secrets.” (Recorded by Muslim)
Imagining some other person as partner:
Also prohibited is imagining some other person while having sex with the spouse. In fact, this is considered a kind of adultery; scholars stated that if a person holds a glass of water and imagines that he is drinking wine, then it is impermissible for him to drink that water.
Sex not allowed during Fasting or in Ihram
Sexual intercourse or intimate touching or caressing, etc. are forbidden while fasting, or in state of ihram.
Violent and injurious sexual acts
Sadistic practices such as deriving carnal pleasure by inflicting pain or chaining one’s partner, etc. are all forbidden as they are considered as degrading and inhumane.
The husband should ensure that he is gentle and tender with his wife during the act of intercourse. He should avoid positions that may cause discomfort to the wife.