Not sure if people are into this but it might be popular on this forum. I'm really into having my balls touched during sex. Not necessarily hard enough to be considered ballbusting, but I wouldn't complain if it was.
I'm hoping other people who have looked around for this same subject found other material than I have. But here's at least a start.
First, here's a collection on another forum. Some of the links are no longer working, but there's definitely some good stuff.
http://board.freeones.com/showthread...90#post2241090
And here's probably the best clip I've found, which I found just this week. Also some good stuff during a blowjob. Start around 3:00.
http://www.girlsnaked.net/passion-hd...-berrylicious/