Mated To The Hybrid King

In an unfortunate event, she became pregnant with a stranger's child and gave birth to genius twins.
In order to raise a baby, she agreed to marry the mysterious tycoon, but they never met each other.
Five years later, the man informed her that he was filing for divorce. When she met him, she realized that this husband was surprisingly similar to her baby.
The twins grabbed the billionaire’s sleeve and said,"Sir, we suspect that you are our father. Could you please do a paternity test?"