Sin City - Daddy's Little Girl
Daddy's Little Girl was first published in A Decade of Dark Horse #1 (July 1996) and reprinted in Tales to Offend #1 (July 1997), and Booze, Broads, and Bullets.
Johnny is a middle-aged man who seems to be in love with a much younger girl by the name of Amy. Amy insists that they cannot be together and alludes to the solution that he kills her father. Torn by his emotions and manipulated by Amy, he attempts to confront her father first, asking for her hand in marriage. Daddy refuses and Johnny shoots him with a revolver that Amy gave him. Daddy then reveals that the gun was in fact loaded with blanks and was a plot orchestrated by he and Amy. The two are either lovers with a daddy/daughter fetish based relationship or a father and daughter. Daddy strangles Johnny for sexual satisfaction, and it implied this was the only way he was able to become aroused.