Rumor Willis
Credit: FameFlynet

Rumer Willis seems all about showing off her toned bod this summer ... and we can't blame her. As the Chicago alum stepped out in Santa Monica, Calif. Tuesday, she flashed a bit of her taut tummy while making her way in a cropped Princeton University top tucked under a light blue denim button down top.

To complete her casual-cool street style look, Willis sported faded black, high-waist, cropped jeans, black flats with a bright gold toe, black sunnies and a small black handbag. Matching the vibe of her ensemble, Willis's jet-black hair was straight and casually parted to the side as she strolled to meet up with a friend, cell phone in hand.

Willis's day out in the beach town comes just a couple of days after she shared a sultry photo of herself relaxing by the pool. "Pool Daze ...@jayson_blair," she captioned the shot captured by her former boyfriend Jayson Blair, which showed her lounging on a pool chair in a black bikini, revealing her toned abs and legs.

The singer-actress also posted another shot of herself by the pool that day, putting up an artistic shot that showed her walking towards the water in high-cut bikini bottoms as Blair palmed a camera behind her.

Talk about serious fitspo for poolside fun this summer.