Pregnant Jamie Lynn Spears' 18-year-old fiancé Casey Aldridge appears to have pulled a gun on a paparazzo in a new video clip online.

Spears and Aldrige can be seen in the footage posted by TMZ approaching the photographer in their vehicle. The first time father-to-be shouts at the shutterbug to leave the grounds, calling it private. It was near their Kentwood home.

Aldridge then shows the pap what the website recognizes as a gun to emphasize his point. The photographer then backs away and the two drive off.

The teenage lovebirds have recently celebrated Spears' 17th birthday together by dining in Ruby Tuesday on Friday. They have reportedly gotten engaged.