Can you gets aids from biting someone's nipple who has it?

See below: Unlikely. Aids needs to be transmitted through sexual contact or exposure to the blood of an infected person. However, you should be cautious.

Blood transfer: If you spit blood when you brush or floss you may have wounds in your gums that could make you susceptible that way if the bite resulted in that person bleeding. HIV requires blood exposure/transfer which is not limited to intercourse.