Miley & Rihanna Battle It Out On Underwear Day! Who Flosses Their Booty Better?

It’s National Underwear Day! Let’s look at some butts, shall we?
When it comes to thongs, there are only two pop stars worthy of mention — Miley Cyrus and Rihanna.
They’ve both done more for the thong industry in recent years than even Victoria’s Secret!
You could even say they love butt-flossing more than regular teeth-flossing! And that may not be great for their teeth, but we’re not here to discuss dental hygiene.
We’re here to decide which of these sexy, rebellious hotties has the better thong game!
Step right up, ladies and gentleman, it’s thong judgment time …AFTER THE JUMP!!!

Left: Miley poses with a red thong leotard up her booty. Right: Rihanna lounges on an inflatable raft, butt exposed.

Left: Mileybird regales an audience with her derriere hanging out. Right: RiRi’s badonk is beautifully illuminated in the water, and she knows it!

Left: Miley touches herself. Right: Rih goes surfing.

Left: Miley hikes her thong up a little more. Right: Rihanna lets you know all that glitters is BUTT!

EXTREME CLOSE-UP!
Left: Miley’s money-print thong bodysuit. Right: Rihanna’s cut-off denim thong!
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[Image via Terry Richardson, Rihanna Instagram, WENN, Will Alexander/WENN, Chris Jepson/WENN, Miley Cyrus Instagram, BauerGriffinOnline]