Kate Hudson s cheeky attempt to celebrate the start of summer is getting some playful shade from her brother, Oliver Hudson .

On Tuesday, Kate shared a series of photos on Instagram showing her lounging by a pool in just a thong bikini bottom. Though she was topless, she used a strategically placed book to ensure that the photos were suitable for social media.

Suns out, buns (and huns) out, the Almost Famous actor wrote in the caption, along with the hashtag #summerready.