We're surprised he was allowed to spend time with them alone!

Scott Disick took son Mason and daughter Penelope toy shopping in Calabasas yesterday, and it's good the hard partying reality star is getting back to parenting, because the only thing he was focused on a month ago was hooking up with hot chicks in Miami!

The only reason LD was allowed to look after the kids was probably because Kourtney was in Palm Springs with sisters Kim and Khloe. In fact, the mother-of-three has been hinting she will keep their young ones from The Lord unless he cleans up his act.

"[Kourtney] threatened Scott that she would take the kids away from him because he is being an awful father lately," a source dished to Radar. "Not only is Scott continuing to drink and party, but he is just never there. Kourtney warned him that if he relapsed again that she would go after full custody," the source added.

Sadly, the kiddos are aware of their father's bad behavior.

“Unfortunately, it is Mason and Penelope that are really suffering because they are constantly asking, ‘where is daddy’, and they are both at the age that Kourtney cannot lie to them anymore. She is telling them straight up that their dad is not around because he is drinking, and this just breaks their little hearts,” the insider revealed.

Maybe Kourt should have thought of this before getting pregnant with the Heineken-loving bad boy!