<prompt> Following is not a sexual perversion -SadismMasochismUndinismBestiality  <response>: Ref: Textbook of forensic medicine and toxicology V.V.Pillay 17th edition , page no. 411 Bestiality is unnatural sexual offence involves sexual intercourse with a lower animal. The animals mainly selected include cows, mares, bitches, female sheep etc.by males and bulls horse, dogs, dogs, and male sheepby female. 