Credit: Beyoncé.com

While recent photos and joint statements will have you believing that Jay Z and sister-in-law Solange are doing just fine after their Met Gala elevator brawl, a new report says things are actually much less hunky dory. In fact, according to rumors, Solange is planning to write a tell-all that will reveal some shocking family secrets, including dirt on Jay and Beyoncé’s marriage!

In a recent story from In Touch magazine, sources reveal that the pop star’s little sis has reached her limit with the way that Bey handles Jay Z’s alleged womanizing ways. The mag reports that Solange doesn’t agree with how the “Drunk in Love” songstress will look the other way as Jay Z philanders, and is threatening to expose that in the aforementioned memoir.

 The book would also include more secrets from the power couple’s marriage, the insider maintains, along with the scoop on their estranged father, Matthew Knowles. If you missed it, Matthew and the girls’ mother Tina Knowles split a while back after it was revealed that he’d fathered a son outside of his nearly-30 year marriage.

We’re taking this story with a grain of salt for the time being, as we have a hard time picturing Solange going through with something that would hurt her relationship with her sister. Plus, not only would it be bad for Jay Z, it would cause Beyonce a lot of embarrassment. Anyone that has a sister knows that you don’t do that!

Do you think Solange will blow up Jay and Bey’s marriage in a book? Tell us in the comments below.

Source: In Touch via Hollywood Life

Samantha Lear is an Assistant Editor at Wetpaint Entertainment. Follow her on Twitter and Google+!