Ashlee Simpson: Poolside Bikini Babe in Mexico

Ashlee Simpson shows off her slim bod in a bikini while lounging around the pool on Saturday afternoon (June 22) in Cabo San Lucas, Mexico.

The 28-year-old entertainer was joined on vacation by some of her closest gal pals.

PHOTOS: Check out the latest pics of Ashlee Simpson

Earlier in the month, Ashlee and her son Bronx, 4, were spotted making their way through LAX Airport to catch a departing flight in Los Angeles.

15+ pictures inside of Ashlee Simpson hanging out poolside with her friends in Cabo…