Four months after giving birth to her son, Future Zahir, Ciara proudly showed off her post partum body wearing only Calvin Klein underwear. She did so through two photos she posted on social media platform, Instagram.

"I feel so proud to say that 4 months after delivering a 9 lbs. 10 oz. baby, I can finally rock My Calvin's! #mycalvins," she wrote to caption a photo of her lying in bed wearing a black sweater and matching gray Clavin Kelin underwear, while staring sultrily at the camera.

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The "Love Sex Magic" singer welcomed her first son in May, and has been training with personal trainer Gunnar Peterson to get back that pre-baby body.

"She's working hard, she's getting it done, she's eating properly, she's getting sleep while she can, and so she's getting leaner and stronger," the personal trainer said in September when asked about Ciara's daly routine.

"That's the best way to be the best mom," Peterson added.

Ciara reportedly lost 60 pounds after birth, and it is very obvious as we can see that the sexy star's abdomen is toned, and her cheekbones look sharp enough to cut glass.

In another photo where she just simply poses wearing her Calvins, she said, "After Delivering My Son I Fell Like There's Nothing I Can't Do. I Feel Like I Can Conquer The World. #ANewMe #New Music."

Looks like the singer is throwing a "Body Party" to celebrate her regained sexy body.

TagsCiara