Chastity device reviews discussion

Hi all, I’m starting this discussion because I’m a bit puzzled about chastity devices. I have a chastity cage from; it fits well and looks professional. The issue is that as a guy, I still get natural erections (especially at night). These cause my cage to shift forward, leaving my balls feeling bruised and occasionally painful. It’s confusing because the size matches my penis perfectly. My girlfriend keeps me locked around the clock. While I enjoy being her little dildo-sucking bitch, I worry this setup isn’t entirely healthy for me. Do you agree? I’m considering other types of devices instead. What are your thoughts on chastity belts? The concept of having a “pussy” between my legs appeals to me, but those setups can be pricey. As a student with limited funds, cost is a factor. I spotted this chastity belt designed for sissies on eBay and it looks fantastic. I’ve attached an image so you can check it out. What do you think? Would it work well for 24/7 denial?