Taqoya Branscomb hit headlines on Tuesday (08Jul14) when it emerged she had filed suit in a Harris County, Texas court seeking a Dna test to prove that music manager Knowles is her little girl's dad.
The plaintiff claims she fell pregnant after a fling with Knowles in 2010 - the same year his ex-wife, Beyonce's mum Tina, filed for divorce.
However, Branscomb insists she is not looking for fame.
A statement issued to U.S. daytime show The Talk reads: "I have taken the necessary legal action against Mathew Knowles. With that being said, it's in my best interest for this to remain a private matter for now. It was never my intention for this to become a public matter."
Knowles has yet to comment on the lawsuit.
Stylist Tina Knowles moved to end her 31-year marriage to Mathew after discovering he had been cheating on her with another woman, Alexsandra Wright, the mother of his four-year-old son, Nixon.
Mathew is already paying Wright child support, although earlier this year (14), his monthly fees were reduced from $12,000 (£7,058) to $2,400 (£1,412) after arguing his income had dropped significantly since he was fired as Beyonce's manager in 2011.