It's been a while since Rihanna engaged in one of her favorite past times, talking slick about Ciara, so it shouldn't surprise you that she's back to her old tricks...
Bad Gal RiRi's right hand man Jenn Rosales Instagrammed a fart joke about Ciara and, instead of ignoring it, Rihanna commented on the post sending her Navy into fits of laughter while the C Squad went on the the warpath.
Meanwhile Ciara is on vacation in the Caribbean with her boyfriend Future.