“Michigan love,” the single mom, 43, captioned the sweet shot smooching her son.
In a series of family photos, the Anger Management alum shared some pics of her growing boy.
“CHRISTMAS!!! Late start apparently. Noticed it started in October this year. #christmas2015countdown #haventgottenanythingdone #notoverachievers,” she wrote.
And in a cute clip, Arthur and the family pooch are seen playing pogo together.
“The most gentle pogo attack ever. #arthursaint #ducky @jaggedculture. @catimini_official . @vans keeping this boy jumping happy,” the actress wrote.
Earlier this month, the Hellboy actress talked about adopting Ducky the dog.
“We adopted a senior. A 12 year old pug chihuahua mix. Arthur named her ducky. Lucky ducky. We all are. @bestfriendsanimalsociety #saveyourbestfriend . #nkla dog fair #yoda #gizmo #wewillsavethemall,” she said.
Continue looking through our gallery to see Selma’s family photos…
The most gentle pogo attack ever. #arthursaint #ducky @jaggedculture. @catimini_official . @vans keeping this boy jumping happy. A video posted by Selma Blair (@therealselmablair) on