Romanticizing a baap-beti relationship normalizes grooming. It tells young readers that a father's "special attention" or jealousy has a sexual undertone. It erases the parent's role as a safe, non-sexual anchor in a daughter's life. For survivors of familial abuse, stumbling upon such stories can be deeply retraumatizing.
Write passion. Write longing. Write age-gap, write forbidden love between in-laws or step-relatives with clear separation. But leave the "baap beti" fantasy in the dark where it belongs. Some stories should never be romanticized. If you meant something else—for example, you are looking for a that critiques or deconstructs this genre, or you want a romantic story that explicitly excludes this dynamic—please clarify and I will happily rewrite.
There is no "romance" in incest. As storytellers, we have a responsibility. The line between exploring taboo and endorsing abuse is thick and bright. Do not cross it.