Back to sexy after heartbreak: Jennifer Lopez shows off cleavage in revealing selfie... as ex Casper Smart makes it clear he got custody of the dogs

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She split from dancer Casper Smart this summer.

And after a few weeks of laying low, Jennifer Lopez made it clear on Monday she's back to being her sexy self. The Shades Of Blue actress posted a revealing photo to Instagram where her cleavage was on display thanks to a low-cut black silk negligee. 

The All I Have performer's caption read: 'Ok good night.'

That same day her ex shared a photo of their three dogs, making it seem as if he got custody of the pooches. 

Two much! Jennifer Lopez showed off her cleavage in this selfie shared on Monday night

My fur kids: That same day her ex Casper Smart shared a photo of their three dogs, making it clear he got custody of the pooches

Done: In August People said Jennifer and Casper's split happened without drama. 'It wasn't anything dramatic and they were on good terms,' the insider claimed; here they are seen in January

The 47-year-old beauty had her hair in her face that made her look as if she already had a nap. She was sitting on what appeared to be a bed.

Though the perfume mogul made it seem as if she was about to hit her pillow, she still had on her makeup.

Also on Monday the Booty singer shared a photo where she was dining with pals. 'The gang's all here,' she wrote in the caption.

Lots of LOLs: Also on Monday the Booty singer shared a photo where she was dining with pals. She said they were the 'best in the biz'

You glow girl: And there was another shot where she had a Snapchat filter on as pal Mary Phillips looks on

And there was another shot where she had a Snapchat filter on as pal Mary Phillips looks on. 

The star has been busy shooting her NBC Shades Of Blue cop drama in New York City since she called it quits with Smart in late August.

The Bronx native also signed on as judge on the new NBC competition show World Of Dance. And she announced she will star in Griselda, which is being written by Terrance Winter (who wrote Wolf Of Wall Street and Boardwalk Empire).

A bonus for all the J-Lo fans out there: Here she posed in her car over the weekend

In August People said that Jennifer and Casper's split happened without drama.

'It wasn't anything dramatic and they were on good terms,' the insider told the magazine. 'It just came to a natural end.'

'They will remain friends and they see each other, but they are not together. It was very amiable.'

After the news broke of the breakup, TMZ reported that it was Jennifer who had made the decision to call time on their romance.

Working girl: On Tuesday the beauty was spotted on the NYC set of Shades Of Blue

Broke down car? The star, who plays Harlee Santos, was having vehicle issues

J-Lo, who was previously married to Marc Anthony, with whom she has eight-year-old twins, first got together with her backup dancer beau in 2011 when he was part of her tour. 

The last time she and Casper were photographed together was August 15 as they celebrated backstage at her All I Have show with her ex Marc and his young wife Shannon De Lima.

On Monday Casper shared a photo with all three of his dogs while on a hike. The dogs used to live with Lopez when she was still with the choreographer.

It is not known if Jennifer has talked to or gotten back together with Smart.

On Tuesday afternoon Lopez was spotted on the set of Shades of Blue. She wore a trench coat and slacks as she looked into the engine of a green car.