Bye, bye, bye Scott Disick ...

After finally kicking good-for-nothing Scott Disick to the curb, Kourtney Kardashian is seeking full custody of the couple's three children, reports Us Weekly.

Outlets are reporting that the 36-year-old met with "Disso Queen" Laura Wasser -- and on Monday we caught the oldest Kardashian heading into the top lawyer's office building, solidifying suspicions that Kourt had nabbed Wasser.

Enlisting the talents of the top divorce attorney in Los Angeles may come as a surprise to some since the former couple, who was together nine years, were never married. But as we all know -- things can get messy when it comes to a former couple's kids

A source tells the mag that Kourt is apparently very serious about seeking sole custody of their kids, Mason, 5, Penelope, 3, and Reign, 7 months. The reality star mom wants to make sure she keeps her brood away from Scott's apparent binges on booze, drugs and women.

A Kardashian pal told the mag, "She met with Laura Wasser again. And is going to seek sole custody of the kids."

We wouldn't be surprised if the LD didn't challenge Kourt's rumored bid for sole custody -- the Lord seems to be too busy ruining his own life to concern himself with anyone else's.