I really like this guy that used to film with tyrant teasers. he has a big head that get bitten in some clips, all very hot..

http://imageshack.us/photo/my-images/205/49174447.png/
http://imageshack.us/photo/my-images/9/13174711.png/

A while ago I bumped into a bestiality video that featured some biting on the horsecock.. any1 interested?