Medium sized balls have the greatest appeal to me. Of course, if you’re hung like a horse then giant-sized balls might be a perfect match. You have to admit that balls swinging and slapping during intercourse is an awesome sensation (and one that I look forward to experiencing even more). I’m not sure about stimulating of the clit in doggie style intercourse, but surely the “sensation” of slapping balls during intercourse is a turn-on for both. Like I have said, I am not looking for balls that drag the floor, just “balls that swing.” Like WESTLA, I think that a low hanging sac makes for a fine overall appeal.