Rihanna is still enjoying her holiday time in Hawaii, and not only is tweeting about rolling kush and keeping her glass full (her words, not ours!), but she's posting plenty of pictures to keep us updated on her latest adventures.

Yesterday this photo caught the attention of Khloe Kardashian, who then tweeted, "Shake your t*** for this woman! LOL #MotivationBaby" Rihanna responded, "Haaaa!!! Come tap this @KhloeKardashian". Ahh, so ladylike.

In addition to uploading bikini-clad vacation photos of herself, RiRi has been working on her tan, paddleboarding and noshing on meals cooked by a private chef. Sounds like a blast!

Click after the jump for another hot shot!