if she's terrible at giving head, i'll just let her play w/my balls.....however if she's outstanding she can do what she wants........i'm sure i'll love it anyway.
Personally , I have a thing against anything that involves pain , especially in the sex department , the nuts are so prone to injury that I'd have to be REAL trusting of the girl , no feminazis or anything , and worse I've never really got any stimulation from that area. So nope .
it's also great when she's sucking or licking it that she can fondle my balls very easily. that really sends a "tingle" through me.......i feel like i'm going to cum after 5 sec.