My friends wife has just developed a bit of a fetish with this, she likes us to hang things off our balls and pull things, he has a micro penis so she uses big o rings on him at the moment but has a heavy clamp thing to go round his balls when it will go on but he is a bit small, with me I have agreed she can tie things she likes me to sit on a dining room chair and then tie a coke bottle to my balls and hang it over the back of another so my balls are being pulled up and forward, no idea why I let she does it naked