Masaail relating to intimacy

Q: Is it permissible for a husband to pleasure his wife while she is on her periods?

Q: My husband has a very high sex drive. He wants frequent sex. Almost four times a week. Can I refuse him when I'm tired or not in the mood.

Q: Is it haraam to have sex with husband or wife while he or she is asleep?

Q: Regarding intimacy between husband and wife, over time I have read in a few books and Q & A's to the effect that, permissibility being said, one should should still remember the hadith that '...Hayaa is the branch of Imaan...' Also I have read that taqwa demands that one should not be totally undressed and that at least one garment be kept on by each spouse. I would like to know what is Mufti saheb's view regarding this. Please advise as to what is better for one to do. Furthermore, I once read on UswatulMuslimah to the effect that the manner of intimacy has an impact on a child that is born of that union. 'Goodness begets goodness' was mentioned. If garments for the purpose of intimacy are worn, will this not have an impact on the piety, hayaa etc. of a child that could be born? Please provide a detail answer as this is bothering me for very long. Please make dua for the piety of my family and I.

Q: Should the dua "اللهم جنبنا الشيطان وجنب الشيطان ما رزقتنا" be read in the heart or with the tongue in the following situations?

1. The husband is lying under the blanket with underwear i.e. part of the aurah is not covered by clothes, only by the blanket?

2. The husband is lying under the blanket without any clothes at all?

3. The wife is lying below the blanket with underwear, but she has no hijab, leaving her hair uncovered outside the blanket

Also, should the following dua be read with the tongue or in the heart at the time of ejaculation: "اللهم لا تجعل للشيطان فيما رزقتنا نصيبا"? Should it be read by the husband and the wife or only by the husband?

Q: I want to know the fidya for having relations during haidh.

Q: My question is that can a husband and wife watch sexual content together if it's the only way they can have sex because one of them got low desire while other one got very strong desire. If he can't get it from his partner he might commit zina. Remember he lives in the country where he can get it in return of money. The big problem is he can't divorce the partner and get married to another because of family problems and his partner is not ready to go to doctors so he is kind of stuck. The only way is sexual content is solving his problem and if he can't do it, can he watch it and masturbate to prevent himself committing gunnah.

Q: Using sex toys, is this haram? Can you give any reference about it?

Q: 1. Can a wife masturbate her husband? Can she perform oral sex before any fluids are discharged from the penis?

Q: I have a question regarding physical relations between husband and wife. My friend is very religious and her husband is moderately religious. She has a question that if her husband uses any medication or pill like ecstasy for good relations then is that allowed in Islam. He is adamant that men use different herbal and all type of medicines for enjoyment and women should also be allowed. Kindly guide us with your knowledge with reference.