Chances are that whatever damage you did the day before with the hot food, it was adequately healed by the time of your 'high protein snack!' If you remain worried, you always have the option of getting an HIV test at the three-month mark. The oral membranes, however, generally heal very quickly. If you had an open cut or burn inside the mouth, your risk would increase. The HIV transmission/acquisition risk from unprotected oral sex is very low.
