Deion Sanders’ aunt Laura Jones just gave a SHOCKING blow-by-blow to her violent altercation with Pilar inside Deion’s Texas mansion Monday — admitting she grabbed Pilar’s hair … and beat the holy hell out of her.

49-year-old Laura — who’s married to Deion’s uncle — called in to Dallas K104 this morning, claiming she stopped by Deion’s house to take care of some housekeeping items (a job Deion pays her to do) and Pilar flipped.

According to Laura, Pilar objected to her being in the house, and demanded she “get the f**k out.” The argument escalated quickly, and Laura says Pilar brushed against her in a threatening way … so Laura responded by grabbing Pilar’s hair and hitting her.

This is where it gets NUTS — Laura says Pilar then ripped Laura’s dress clean off during the melee, leaving her practically naked, and tumbled backwards down the staircase. Laura says Pilar then grabbed a bunch of knives from the kitchen, and brandished them while she called 911.

Right then, Laura says Deion came downstairs to see what the ruckus was about — and Pilar yelled at the dispatcher, “My husband is attacking me!!!”

According to Laura, the cops showed up minutes later — and Pilar refused to put away the knives … so they cuffed her and threw in the back of a cruiser. Laura says the children were present the entire time.

But Laura claims charges were never filed against Pilar because Deion intervened — and got Pilar off the hook.

Laura also submitted an alleged audio recording of the fight — claiming she acquired it during her brawl with Pilar … who’s allegedly been recording everything in the house to use as leverage in her divorce.

Check out Pilar And Auntie Laura arguing:

Here is Auntie Laura’s radio interview: