BFFs and collaborators Rihanna and Jay-Z were spotted in Las Vegas, NV over the weekend enjoying all that Sin City has to offer. Clearly, the sinful nature of her environment had a strong impact on Rihanna herself as she opted for a daring outfit that pretty much gave away all of her goodies. Were it not for the sparkly pasties on her nips, Ri Ri‘s ta-tas would’ve been on full display:

In Hollywood, one person’s wardrobe malfunction is another’s fashion statement – just ask Rihanna. The 21-year-old arrived for Independence Day celebrations over the weekend flashing daring silver sequinned nipple petals from beneath her gaping tuxedo jacket. Far from being an embarrassing moment of overexposure, it was a very deliberate move by the bold Umbrella singer who seemed completely at ease in her most provocative outfit yet … Rihanna was in Las Vegas to mark July 4 along with her mentor Jay-Z, who attended the party at Tao nightclub without his wife Beyonce. The rapper is credited with giving the singer her big break by signing her to record label Def Jam and the pair are rumoured to be working on new material for her next album.

Wowie! That’s some outfit. I mean … if you’re okay with the bared boobs, she looks pretty spectacular. I’m not sure that Beyoncé is a fan of this look, especially since Ri Ri wore it while hangin’ out with her husband Jay-Z but … well. Glad to see Rihanna lookin’ so well these days … er, at least she’s lookin’ perky.

[Photo credit: Big! Pictures; Source]