Ans. (c) Pleasure in touching opposite sexRef: The Essentials ofFSM by K.S. Narayan Reddy 31st ed. / 404* FROTTEURISM: rubbing the genitalia with the body of the person of other sex for sexual satisfaction.* Paraphilias: Abnormal 8c unorthodox sex play by using unusual objects or parts are know as paraphilia eg. Sadomasochism, Transvestism, Bestiality, Frotteurism, Homosexuality etc.* Bisexuality means hermaphrodite; an individual with both ovary 8c testis 8c external genitals of both sexes.Different Paraphilias/PerversionSexual perversionMode of sexual pleasureSadismPleasure in giving pain to sexual partnerMasochismPleasure on receiving painful stimulus from sexual partnerBondageSadism + masochism are found togetherFetischismSexual gratification by article of opposite sexFrotteurismSexual gratification by contact. Ex: rubbing genitalia on another personExhibitionismSatisfaction in exhibition of genitals with or without mastutbationTransvestism/ EonismPleasure in wearing clothes of opposite sexUranismSexual gratification by fingering, fellatio, cunnilingus etc.Buccal coitus or Sin of GomorrahFellatio is oral stimulation of penis by male or femaleCunnilingus is oral stimulation of female genitalsVoyeurism/ ScotophiliaAlso known as Peeping tomDesire to watch sexual intercourse or toobserve genitals of othersTrolismExtreme degree of voyeurism. Ex: A perverted husband enjoy watching his wife having sexual intercourse with another man.Urolangia/ CoprophiliaSexual excitement by sight or odor of urine or faeces.Tribadism/ LesbianismGratification of sexual desire of a women by another womenSodomy or Buggery of Greek Love* Anal sex* Gerantophilia -when passive agent is adult* Paederasty - when the passive agent is young boy (catamite)IncestSexual intercourse with close relativeBestialitySexual intercourse by a human being with a lower animal