<prompt> Which of the following is meant by the term Sin of Gomorrah?Oral sexAnal sexBestialityLesbianism  <response>: Oral sex is also called coitus per os or Sin of Gomorrah or buccal coitus. According to Bible the sin was common in a town called: Gomorrah, so the name. It is included in Unnatural sexual offences Act S.377 IPC. Ref: The Essentials of Forensic Medicine and Toxicology by Dr. K. S. Narayan Reddy, 27th edition, Page 365. 