Gilbert Arenas drags his ex and mother of their four children, Laura Govan, on a regular basis on Instagram.

But Govan is reportedly set to return fire in the worst way... dragging her own sister along for the ride. According to the Shade Room, Govan is working on a tell-all book, which includes the explosive revelation that her sister, Gloria Govan, slept with Arenas.

Wait... what?

Upon learning of the report, their brother, Lonnie Govan, Arenas and Matt Barnes all blasted what they believe is Laura's sad attempt to extend her fame — even if it means airing out her family's alleged dirty laundry. Gloria and Matt have two sons, but she has been dating Barnes's former teammate Derek Fisher since last year.

Peep how Lonnie, Barnes and Arenas all shaded Laura's tell-all to the highest power.

We're dead at Barnes telling Gilbert, "Everyone wants to be famous, only problem is you need talent for that," and Arenas responding, "Her talent is making s**t up... yo let's do a show called #MythBustersLauraLiesEdition hahaha."

This isn't going to end well.

All we know is Derek better not chime in with any slick talk. Otherwise, he could be on the receiving end of another beatdown at the hands of Barnes in these streets.

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