Amanda Bynes returned to Twitter on Thursday, May 15 to share a loving photo of her alongside her sister.

"Me and my beautiful sister @jillyjoyce," wrote the 28-year-old actress as a caption.

In the picture, both women are smiling while dressed in trendy, semi-formal outfits. Bynes is sporting black shorts, a black peplum top, polka-dot shawl and black pointed-toe pumps with a snakeskin handbag. Meanwhile, her sister is dressed up in a pair of tight black pants, matched with a sheer black top and blue sandals.

This was the first time that the star tweeted since she shared photos of herself in Mexico on her birthday, April 3. In the pics, the "Hairspray" star looked happy and healthy as she posed in a neon bikini while on vacation with her parents. "Spring break," she wrote as the caption on the first picture. For the other photo, she wrote "Thank you everyone for all the birthday wishes."

This is a complete 180 from the months of bizarre and erratic behavior that Bynes displayed in 2013. Not only was she accused of throwing a bong out of a high-rise apartment in Manhattan, but the embattled star posted a number of disturbing tweets and attacked celebrities like Rhianna and Christine Teigen on Twitter.

On July 22, 2013, Bynes was committed to a psychiatric hospital after she set fire to a stranger's driveway around the corner from her parents' home in California. She was rumored to have been diagnosed with schizophrenia and her parents were granted full conservatorship over her fortune.

Bynes received treatment for mental illness at UCLA's medical center before she was transferred to a mental rehabilitation facility in Malibu called The Canyon.

In December, Bynes was released into the care of her parents in Thousand Oaks, California and appears to also be focused on her physical health and going to the gym.