Reese Witherspoon: Smiling Star Workout!

Reese Witherspoon flashes a smile while jogging with a gal pal on Tuesday (June 18) in Brentwood, Calif.

The day before, the 37-year-old actress and her brother John took her shirtless son Deacon to a community swimming pool in Nashville, Tenn.

PHOTOS: Check out the latest pics of Reese Witherspoon

On the same night, Reese was spotted holding hands with Deacon while arriving at LAX Airport after spending time away from home for Father’s Day.

25+ pictures inside of Reese Witherspoon heading out for a jog after landing at LAX Airport…