Is it normal my wife wants me in chastity and knickers ... for now

My wife is a very demanding woman, after our 2nd child was born she insisted on going back to work full time and that I gave up my job to be a stay at home parent. She had stayed home for 2 years since the birth of our 1st and said it was my turn. Before the children were born she had a well paid job. She had seen a vacancy with her old employer and applied for it and was subsequently offered a position. I felt this was the wrong decision, I also earned a good salery working in engineering and suggested getting a nanny but she was insistent. In the end I gave in to her. That was all about about 18 years ago, since then she has moved up the career ladder and is a high earner. She always insisted I stayed home full time and looked after everyone, but both children have recently left home.

Now we are on our own she has said she wants a different lifestyle. A couple of years ago she bought me a chastity cage, it was her idea, she said it would be fun for me to wear it when we have sex. I would have to give her lots of attention and orgasms until she decided she was ready to remove it and make love. It was fine at first and we both had fun with it, then after about 6 months I had given her a massage and about 4 orgasms and she told me she was tired and wanted to go to sleep. I obviously objected, she said we should leave the cage over night and remove it and make love in the morning. I didn't want to do this and told her to remove it but she refused, she had hidden the key and would not tell me where it was. She did however do as she said in the morning. This happened a few times over the next few months but she always kept her word. It kind of added to the excitement as I never knew if I would give her lots of attention and orgasms, only to have to wait till the morning and start all over again to get released. Then one morning she told me she wasn't in the mood and I would have to wait until later. I was disappointed and moody about it and told her to just take it off but she refused. She left it on all day, that night she was sorry and removed it and we made love. Since then she has done this a few times, and has also made me keep it on longer sometimes. Once it was from Thursday night right through the weekend until Monday night. I don't really like it, but if I won't wear it when she wants me to she won't make love until I do, she also won't take it off for longer if I make a fuss.

Now she says she wants a different lifestyle and wants me to wear the cage full time. She said she always wanted this and has been training me for months. She told me she also wants me to start wearing sexy knickers and throw away all my male underwear. When I asked why she would want this she told me I have been a lovely housewife for years but it's about time I started dressing a bit more like one. I told her I don't think I want to do this, but all she says is don't worry sweety we'll just stick to the knickers for now!