The case isn't terribly shocking, as Knowles acknowledged in 2010 that he had fathered a child by a different woman and was ordered to pay $12,000 a month in child support. (A figure that was drastically reduced after an irate Beyonce fired him and his income diminished.)
What is surprising about 63-year-old Matthew's second possible baby mama is that he reportedly met the woman through his daughter Solange - who was at the time one of TaQoya's best friends.
Solange, of course, was unaware that her friend was having sex with her father.
The youngest Knowles girl has yet to speak publicly about the scandal, but knowing what we know about Solange's fighting skills, we'd recommend that Matthew keep his distance from Bey's little sis for a while.
Of course, Matthew's paternity suit isn't the only scandal to rock the Knowles' family in recent months.
Allegations that Jay Z cheated on Beyonce have been circulating non-stop without being formally addressed by either half of the power couple.