Secret sibling! Beyonce's dad 'fathered love child' with lingerie model

Beyonce's got one half-brother thanks to her cheating dad Mathew Knowles...and now the superstar could be welcoming another illegitimate sibling to the family. Check out Mathew's baby mama in a steamy shoot above!

Former model TaQoya Branscomb is an ex-fling of Mathew's and has filed a paternity suit which claims Beyonce's father is also the daddy of her daughter, born in 2010.

TaQoya, 30, is ordering Mathew to take a DNA test…and wants him to cough up child support if it turns out he's the, ahem, proud father. Mathew, 63, is yet to comment on the allegations.

2010 was a busy time for Mathew, who also fathered a son that year with actress Alexsandra Wright…while still married to Bey and Solange's mum Tina. Keep it in your pants mate!

Once the affair was made public, Tina filed for divorce after 30 years of marriage…and Beyonce fired Mathew from his role as her manager just months later. Coincidence? We think not.

Who knows how the reigning Queen of Pop will react to this secret sibling?!

Approving editor: Amy Nelmes

Is Beyoncé surrounded by cheaters? Check out her apparent diss of Jay Z in the vid below...

View pics:The scandalous secrets behind Beyonce and Jay Z's picture-perfect life