Amber Portwood and Matthew Baier just got a new kitten.

'Teen Mom OG' Star Amber Portwood Shows Off Her Impressive Weight Loss

Ahead of their upcoming wedding, the Teen Mom OG couple expanded their family with a "new addition," and on Sunday, Portwood shared a photo of the tiny animal on her Twitter page.

'Teen Mom OG' Star Amber Portwood Feuds With Gary Shirley's Girlfriend On Twitter

Portwood began dating Baier months after she was released from prison, where she had been serving time due to a probation violation. Then, during filming on the fifth season of Teen Mom, which was rennamed Teen Mom OG, Baier asked for Portwood's hand in marriage.

Months later, Portwood got her co-stars' approval of her new relationship after a meeting in New York City.

“It went great,” Portwood said during a Teen Mom OG: Featured Moment earlier this year, via MTV News. “Everybody loved him. I know I don’t want to sound like it’s so perfect, but honestly, none of them had anything bad to say. Even when I kind of like, pulled them to the side and was like, ’Do you think he’s cute? Do you think he’s too old? Like, tell me what do you think,’ they were like, ’No, no, you guys are great together. No, we really like Matt.'”

No official word yet on a sixth season of Teen Mom OG.