Sex Detectives (1996)

P.I Charlie Martin is hired by wealthy smut peddler Jack Bowen, who is preparing to divorce his wife, Maranda. Jack recently got caught with his pants down with a woman in Hawaii sporting a tattoo of a scorpion on her ass. And now there is a picture floating around of Jack, and the tattooed behind. Martin's job, find the source of the picture, and get the negative, before the incident becomes a problem in the divorce trial. It's a routine assignment for Martin until he meets the enemy - Miranda, and falls for her. Now he must find the tattooed woman and get to the bottom of the blackmail, hoping all along that Miranda isn't involved.