July 02, 2015 10:45 AM

Teen Mom OG‘s Maci Bookout‘s new baby girl has made her social media debut!

Jayde Carter tugs at heartsrings in her mama’s latest Instagram posts.

Early Thursday, Bookout, 23 — who welcomed her daughter in May — posted a photo of big brother Bentley kissing his sleeping little sister on the forehead.

Moments earlier, the reality star posted a photo of Jayde in the arms of boyfriend Taylor McKinney. “Introducing the prettiest girl in the world! Jayde Carter McKinney,” she captioned the sweet snapshot, captured by Brittany Photographs.

Brittany Photographs

In March, Bookout told PEOPLE Bentley — her son with ex-boyfriend Ryan Edwards — was looking forward to being a big brother.

“He’s so excited for the baby,” the mom-to-be said of her 6 year old. “And I’m excited for him to have a sibling. I think it will be good for him to finally have to share the spotlight.”

So with everyone settling into their new roles, could wedding bells be next? “We definitely want to get married and we’ve talked about it a lot,” Bookout has said.

Brittany Photographs

— Maria Coder

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