WATCH: Sofia Richie Dances in Her Underwear at Scott Disick’s House

It looks like it’s going to be a marry Christmas for Scott Disick!

The 34-year-old reality star got an eyeful when his girlfriend surprised him with an impromptu sexy dance during a night-in at his house.

In a video, Sofia Richie, 19, can be seen gyrating in her underwear to one of her dad Lionel Richie’s hit songs.

Via TMZ:

Disick shared the clip of a 19-year-old Richie in some skimpy Santa gear moving her hips and shaking her ass in his kitchen. It’s a whole lotta awkward, considering the song she’s gyrating to is Lionel’s “All Night Long.”

Watch the video over at TMZ…