Is it normal to enjoy male chastity if it increases my sex drive?

Ever since the beginning of May through September my wife has control of when i can masturbate and jerk my manhood. She has the key to my plastic chastity device and she will take it off only every two weeks or every Friday if i behave myself. Whenever me and my wife have sex play, she will tie my hands to a chair and rub her nude body against mine and i get so aroused and i am not allowed to masturbate until Friday of every week or every two weeks period. We agreed to this sex life and i enjoy it so much. Me and my wife still have regular sex, but only with my chastity device on, how hot is that? The only time im allowed to ejaculate is when my wife gives me a hand-job. and the rule we made was NO INTERCOURSE or SUCKING MY MANHOOD unless im wearing a strapon or fake penis which is longer than mine. She wears the key around her neck and people ask why she wears it and you know what she tells them? "Oh this key is to my music box in my bedroom" and she starts grinning back at me. Man this is turning me on just talking about it too.