This happened a bit over a year ago.
First, some important background: I’m relatively inexperienced when it comes to bottoming. I’m also probably 80/20 bi leaning toward women, but sometimes I just crave the D. When with guys, I’m always a total bottom—can’t even get hard if I (try to) top, but staying hard as a bottom feels natural. I’m also circumcised (this is important because I imagine it’d be more difficult to keep a cock ring on the head if uncircumcised). As with many bottoms, I’m always in search of that elusive prostate/anal orgasm(s). I got really close one time, but the guy unfortunately didn’t last long enough.
I bought an Aneros a while back and it happened to come with a vibrating cock ring as a free gift. I didn’t think anything of it first as I had never been a fan of cock rings. Oh boy, was I wrong to ignore them. It’s even funnier because the Aneros never actually did much for me other than slightly enhancing my regular orgasms while adding a bunch more cleanup/prep work.