Love a BJ, but tea bagging scares hell outa me!

Why is it, when a woman gives a blow job she inevitably wants to suck the man's balls into her mouth? I've often wondered why so many ladies have a thing about sucking balls. I don't disparage them doing that. I mean, after all, it's really amazing of her to want to suck my dick, but it's just that it's so very scary when she takes the nuts in and rolls them around in there. The testicles are about the most delicate part of a man's equipment, and it'd be awfully easy to really seriously hurt them. I think about every girl who's ever sucked my cock has gone for the balls! I love getting my cock sucked! LOVE it, I say! There's not much else in the WORLD that's more delightful! But whenever she sucks my gonads into her mouth I hold my breath until she lets them go. I guess with most guys it really doesn't bother them (or at least I've never heard any of my friends mention it) but it really drives me up the wall when she does that! Do I have a set that's just so appealing that no woman can resist? They act like it's a pair of dice to be shaken and thrown or something! Seven, come eleven; mama needs a new pair of shoes. ...And papa needs a defibrillator after an ordeal like that! :\