Licking a man's ass - prevention of diseases

«A curvy doctor found out that anilingus helps prevent many diseases, so it's useful to lick a man's ass. She does this to the next patient. The guy did not think that prevention could be so pleasant. He enjoyed not only ass licking, but also high-quality blowjob, as well as sex. An attractive hospital worker satisfied the boy to the fullest and even put her face under the sperm.»