Cassie and her best friend, model Kerry Morgan, took a recent trip to the beach that got extremely sexy on Instagram. The "Me & U" singer shared a photo of her playfully drumming on Kerry's pert derriere, which drove her followers into a frenzy.

Cassie was recently hit with rumors that she is pregnant with Diddy's baby after posting a photo that fans thought made her look pregnant, but these recent photos seem to trump the talk. Check out more pics in the above slide and let us know what you think.

Source: Instagram