Actress Kate Beckinsale showed off her bikini body while lounging poolside.

Beckinsale, 43, has shared a series of her bikini-clad photos on Instagram.

She can be seen sporting two different swimsuits while on vacation. One photo has the mother of one flashing her toned body in a red strapless bikini and mismatching white bikini bottom while relaxing on a hammock over the pool.

She poked fun at herself as she captioned it: "Float float and some funny marks on your bum when you get up".

She sports a floral bikini in two other images.