I am a guy. Let me tell you, all those your husband is asking for, is very normal. I have walked that path before with my wife.
Out of interest, I have joined a Sexless/Divorce group. The stories I hear are heart wrenching. Most times, the couple have ceased or have minimal sex. They become estranged over time. Drift apart. Then the issue of Divorce comes up. They wrestle each other and the poor children have to choose either parent (although theoretically, the moms get care and control by default).
It makes more sense to therefore solve the problem at its roots - sex and intimacy.
For me, I always think there should be food at home. When there is no food at home, one just goes out to eat. Period. I am sure I am not the only guy saying this, so don't make me out to be a pervert. I am not.
First principle. You should be happy your husband is still interested in you physically, and not in another woman. If you do not get the rest, just remember this.
Here are some other views from the guys side. Sure, sex is exciting when we first do it with you. It stays exciting for the next 5 years. But there comes a point where it gets hard to do the same thing again and again, just to derive the intimacy. 6 years into marriage, is about that stage. With all the encumbrances - i am assuming kids, household chores, work stress - it is quite a challenge to get it going, south. Imagine us reading the same book for the 10,000th time. I know everything there is to happen, how to get aroused?
So, I too have asked me wife to go out braless or without undies, on our date nights. It helps with the eroticism. Yes, I date my wife every friday night. Then after our date nights, we go home or outdoors to do the deed.
Of course my wife dislikes the idea. Of course my wife dislikes fellatio - I don't impose this part. This is where we wrestled. The way I see it, marriage is never just "i love u, u love me". Most times, both have to work hard on it.
My wife eventually saw the need for it. She acquiesced. Because over the many times we quarreled over this, she came to a realization she is doing this for the sake of her kids; that we will not divorce and the kids can grow up proper with both parents.
Now we are married 24 years. Next year will be our Silver anniversary. My bond with my wife is tight. Our eldest is now in Uni year 2. I still date my wife every week without fail. We spend time catching up with each other. She goes out braless with me, of course. Sometimes, it takes some sacrifices to make things work.