Beyonce's little sister Solange is planning to write a tell-all book on her family secrets and it will also include some details about Beyonce and Jay Z's "troubled" marriage, mediatakeout.com reports. Solange is reportedly getting $20 Million for dishing out all the juicy details.

According to the Web site, the 27-year-old sister of Beyonce will write about "abuse" in their family, "Jay Z's cheating," "Beyonce's fake pregnancy and baby bumps" and much more, the Web site is reporting.

Apart from dishing out dirty secrets of Beyonce and Jay Z's married life, Solange will also write about her abandoned father whom Beyonce is not very fond of. The Web site also goes on to report that Solange is "fed up" of being treated as a second girl in the family while Beyonce is treated as the "golden child."

"Solange is growing increasingly fed up with playing second fiddle to Beyonce, 32, and sources believe she's ready to spill the beans on everything from their estranged father to how Beyonce turns a blind eye to Jay Z's womanizing," the Web site reported.

There are currently many Web sites that are speculating that Beyonce Knowles and Jay Z are on the verge of divorce but the two are keeping it a secret and doing every effort to appear as a happy family. According to Life and Style magazine, the reason for the divorce is primarily Jay Z's infidelity as he has been "spending nights with other women" often. The magazine also reports that the couple has "explosive fights" and suffers from "insane jealousy." Read more about it here.

The rumors of trouble in Beyonce and Jay Z's relationship started after the fight video of Beyonce's little sister Solange and her husband Jay Z became public. Solange was seen hitting on Jay Z using her legs, hands, fists and everything on lift security footage leaked at the Met Gala after party. Surprisingly Beyonce seemed unperturbed by the two fighting and did not try to stop Solange from hitting Jay Z.

Queen Bey has been posting numerous pictures on her Instagram page which show her, Solange and Beyonce in good mood and as happy family. Meanwhile, Solange believes its time she comes out of Beyonce's shadow and lead her own life.

"Solange was always in the background while Beyonce was the golden child. She's sick of being held down and she's ready to fight back," the Web site reports citing a source close to the family.

Looks like the Queen Bey's fans would have to wait for Solange's upcoming explosive book to know the family's truths. Will Solange take the plunge?