Say what you will about Rihanna, the girl certainly does her part to keep Twitter interesting.
The only constant is that we never know what's gonna come next. Fortunately, it frequently involves her lady bits.
Take, for example, a photo that RiRi tweeted earlier today. Is it social commentary? Performance art? A selfie gone horribly wrong?
We're not sure, but we know that it certainly looks like a picture of Rihanna grabbing her own vagina: