Thank you for your reply - that's very interesting.
I'm just in a quandry because both my boyz have a little nibble but it's so gentle and often combined with licking and cuddling, I wasn't sure how to react.
If I say "no" they stop immediately - but I don't want to tell them off if they are trying to be affectionate.
It's very gentle and doesn't hurt at all... a part of me thinks if they were biting to hurt, then hurt they would!
Thanx