# The Billionaire's Forbidden Secret My Sister's Baby Daddy

> A Manhattan billionaire reunites with his amnesiac first love—now a cold obstetrician—only to discover that the baby his sister is carrying via sperm donation was fathered by the very man he never stopped searching for.

- Type: short drama (vertical series)
- Page: https://staging.shortdramadb.com/dramas/10463-the-billionaires-forbidden-secret-my-sisters-baby-daddy
- Episodes: 40
- Released: 2026-08-23
- Language: en
- Platforms: Reelshort
- Tags: LGBTQ, Gay, Secret, Amnesia, Reunion Years Later, Misunderstanding, Secret Reveal, Revenge, Love-Hate, Morals & Ethics, Doctor/Surgeon, Strong-Willed, Billionaire, CEO, Possessive, Childhood Sweetheart, Conspiracy, Ethical, Medical, Heartfelt, All Ages, Animation, Playing Dumb

## Where to watch

- [Reelshort](https://www.reelshort.com/movie/the-billionaire-s-forbidden-secret-my-sister-s-baby-daddy-6a8509fcdb5f6028bf0f43ea)

## Cast

No cast added yet.

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Source: ShortDramaDB v2, https://staging.shortdramadb.com/dramas/10463-the-billionaires-forbidden-secret-my-sisters-baby-daddy. Last updated 2026-11-15.