When you take your belt off and create a noose out of it and place it around your partners neck. Just as she's about to cum you pull it really tight so she squeezes your bits really hard. Its a beautiful thing.
Oh my god Jenny, So I was getting it on with Chris the other day and he took his belt off and choked the shit out of me with it. It was kind of weird but he tightened it as I was about to explode and I came buckets....He calls it Belt Sex