The most intense bite i ever experienced or gave was in a 69 situation with another sub M CD. Our mistress outlined exactly what would happen to the looser of a little "contest" - their cock would be roughly and fully sanded with 150 grit fine sandpaper - then it would (once raw and mostly bleeding) be put into an alcohol filled condom and left in there for 2 hours.

The looser was determined like this - both of us were put into a 69 position. If either of us made the other cum first we won. OR if either of us bit on the other until they gave their safe word (at which point mistress would stop the slave from going further) the one who cried uncle first lost.

It STARTED out with complete unknowing from both of us. We were sissy friends and did not want to hurt the other. Then Maam started taunting us - and it made me hard - once I was hard she went to work and I could feel me building to climax - so of course I started sucking and deep throating the other sub.

Before long she knew she would cum so he strategy shifted - and she started to bite around the base of my cock - I thought she would bite it RIGHT OFF - but I resisted the temptation just a bit longer - and it paid for sure -I felt her head swell and she unloaded in my throat. THankfully she could not help but to let up on my cock and moan as she came - and mistress grabber her immedately and rolled her back.

I had tooth marks around the base of my cock for a week - and it bled for about an hour -------