My cat lover boy has those love bits ! When i wear sandles around him he comes running up to me ( I beleive he has a weekness for toes ) and starts purring loudly and licks and nibbles my toes ! He doesn't hurt me , but i have tickelish feet !
Sunny does the love bites too. when im sitting down sunny climbs upon my back and starts nibbling my hair and face ,purring loudly ! He doesn't hurt me at all .
I think Loverboy and Sunny are only expressing their love for me .

I love all your storys of your cats ,expressions of love ! Cats are so wonderful !