It's officially been two months since Teen Mom 2's Jenelle Evans gave birth to her second son Kaiser and it looks like the MTV star celebrated by continuing to get back into shape.

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"Kai turned 2 months old," tweeted Evans on Thursday afternoon, followed by emojis of a heart and bottle. Kaiser was born June 29.

After school that evening Evans headed to the gym, posting a pic on Twitter of her "favorite workout equipment" for her abs.

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The 23-year-old mother of two turned quite a few heads back on July 3 when she shared a bikini selfie just a week after giving birth.

Evans is definitely committed to staying in shape. "Can't. Move. My. Legs," she tweeted Wednesday night, followed by a thumbs up. "That's when u kno u had a great workout."

Fans and haters alike flocked to comment on the star's post, though even Evans' critics felt the need to step in and warn against some of the volatile behavior shown by some of her more spiteful haters. A few criticized the star for going to the gym instead of spending time with her children, while others insisted that all parents need alone time.

While Evans occasionally responds to specific hate-tweets, she usually bides her time and posts more general statements towards her haters after the initial flurry of responses has died down.

Teen Mom 2 continues on MTV with new episodes Wednesdays at 10 p.m. ET/PT.

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Teen Mom 2, MTV, Television