Stepmom owns my cock in chastity. Taboo handjobs

I don't know if its true but there is a slight weirdness to my relationship with my stepmom. It's something I feel from her. I feel like she wants to control all of life and she does not seem happy when I talk of girls I am hanging with. I feel I have to kind of do as she says. I want to keep her happy. I figure this is just her way of making an impact on me but by next week or so the control she feels will wear off and she will take this thing off my cock and forget about putting it back on. I will have my freedom to fuck when I want even if it is just my own hand. I will do anything to get my dick back where it belongs, freeballing in my boxer briefs. Only thing is, when she released my cock from its plastic lock box, she seemed a little too happy to be wearing the key around her neck. My suspicions were right, she does have a weirdness toward me. Truth is, I want this.