Rihanna Rihanna arrived at Eden Nightclub in a sheer black dress!

Rihanna attended the exclusive Eden nightclub in Hollywood last night wearing a simple black dress with a pair of pink and gold high heels and striking red lipstick for a night of partying and buffoonery. Attracting a swarm of paparazzi, the barrage of flash bulbs managed to reveal a lot more than meets the eye.

The 24-year-old singer’s breasts were shining bright like a diamond last night when the camera flashes revealed that the singer was not wearing a bra for the night out and even showed her sexy thong underneath as well. In fact, is that a nipple piercing we see, RiRi?

Be sure to see the NSFW pictures of Rihanna's breasts through her sheer dress at the link here!

Rihanna’s night at Eden is all part of her time off just ahead of her Diamonds world tour, which begins on March 8, 2013.

Pictures of Rihanna’s gorgeous figure were posted just moments after Rihanna tweeted a picture of herself smoking a hand rolled cigarette during a break from working on routines for the world tour.

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Rihanna (@rihanna) wrote in her tweet: “You a real n*****, then p**ck wit me! #GOLD”

While her rebellious streak certainly grabs attention and bolsters her fame, not everyone is impressed with Rihanna’s antics. The 26-year-old actress Lena Dunham spoke against the singer for her behavior and for the contents on her Instagram site that is often visited by young fans.

“I used to be really into Rihanna, that pop star, and then it's like -- again, I don't want to ever throw stones from my glass house -- but I follow her on Instagram and I just think about how many little girls beyond what I could even comprehend are obsessed with Rihanna,” Said Dunham.

“Like, you know, she left Barbados, she's had this amazing career, she's won a Grammy ... She's talented. And then she gets back together with Chris Brown and posts a million pictures of them smoking marijuana together on a bed. And it cracks my heart in half in a way that makes me feel like I'm 95 years old.”

So how do Rihanna’s fans think about her latest wardrobe malfunction at Eden? Check out the twitter reactions below!