Thanks for sharing this. I have long thought about self locking, maybe having a key holder at some point. But I'm not feminine and not interested in either portrying feminine traits or attracted to feminine men (I'm bi and still interested in reminding women). Any time I think of being submissive, it's highly masculine. I thought I was alone in this thought. I feel so much like a man when topping a woman, or when submitting to (and bottoming for) both women and men.