The Billionaire's Forbidden Secret: My Sister's Baby Daddy
The Billionaire's Forbidden Secret: My Sister's Baby Daddy is a 40-episode billionaire short drama streaming in English on Dramaflix — every short series from 45+ platforms for just $12 a month.
Where to watch?
Dramaflix is the better dealPay about $7.99 less a month with Dramaflix and get short series from 45+ platforms, SerialPlus included, in one plan.Save about $7.99 a month
Plot
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.
Frequently Asked Questions
Where can I watch The Billionaire's Forbidden Secret: My Sister's Baby Daddy?
The Billionaire's Forbidden Secret: My Sister's Baby Daddy streams in English on Dramaflix; it originally comes from SerialPlus. A Dramaflix subscription covers every short series from 45+ platforms.
How much does it cost to watch The Billionaire's Forbidden Secret: My Sister's Baby Daddy?
On Dramaflix, The Billionaire's Forbidden Secret: My Sister's Baby Daddy is included in a single $12/month plan that covers every short series from 45+ platforms. Watching it on SerialPlus alone costs around $19.99 a month, so Dramaflix saves you about $7.99 a month.
Is The Billionaire's Forbidden Secret: My Sister's Baby Daddy on Dramaflix?
Yes, The Billionaire's Forbidden Secret: My Sister's Baby Daddy is in the Dramaflix catalog, with all episodes available in English.
How many episodes does The Billionaire's Forbidden Secret: My Sister's Baby Daddy have?
The Billionaire's Forbidden Secret: My Sister's Baby Daddy is a short vertical miniseries with 40 episodes in total.
What genre is The Billionaire's Forbidden Secret: My Sister's Baby Daddy?
The Billionaire's Forbidden Secret: My Sister's Baby Daddy is a billionaire short drama with themes such as urban, modern city, female, and modern romance.
Is The Billionaire's Forbidden Secret: My Sister's Baby Daddy dubbed or subtitled in English?
The Billionaire's Forbidden Secret: My Sister's Baby Daddy is available on Dramaflix with English dubbing, English subtitles, or both.
What is The Billionaire's Forbidden Secret: My Sister's Baby Daddy about?
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.
Streaming info last updated: November 8, 2026
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