In the snap, Devoin carried Stella, four, in one arm and wrapped his other arm around Nova, 10.
The trio was standing under a sign that said: "Hey there wild thing."
The reality star wrote: "Happy 10th birthday to my favorite girl."
In the short clips, the stars appeared to be on good terms as they sat down at for Nova's birthday bash.
While sharing a , Devoin wrote that , 27, had put together one of "the greatest birthday parties I've ever seen.
She went all out as always. But this one I feel like she went an extra extra mile."
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In the , Devoin sat next to his little girl as she cut the birthday cake.
After leaving the Sugar Factory, the group, including Devoin and Briana, headed on over to the movies.
In her , Briana tagged her ex and wrote: "Got the movie theater to ourselves tonight."
'AN AMAZING DADDY'
At the end of August, Briana's baby daddy called out MTV after the network had portrayed him as a "."
Devoin shared a message that stated: "Just sending you a little appreciation and support. We have had the narrative that you are a deadbeat shoved down our throats since the moment we were introduced to you on TV.
"Ain't nobody buying that storyline anymore! You're an amazing Daddy to Nova, and the way you have stepped up to be there for Stella is the sweetest thing ever.
"Keep doing what you are doing and know it isn't going unnoticed."
He continued: "I really wish I didn't have to receive these types of messages. Ain't nobody buying that s**t @mtv, @teenmom, @viacomcbs..."
Briana had previously praised Devoin for financially after previously slamming him for not paying child support for their daughter.
The TV personality shares Nova with Devoin and Stella with her ex .
THE BREAK-UP
Recently, during an session, the reality star confirmed that she with tattoo artist Javi Gonzalez.
The mom explained she was “not ready for” a relationship right now and had “other plans” for her life.
The TV star added that she still “, and he’s a great guy” and that the two might reunite in the future, but at this moment, she needed to be alone.
After the reality star announced she was single, a fan asked Javi: "What happened between you and Briana?"
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The tattoo artist replied: "Different frequencies, different principles. No hard feelings just not for me."
The star had announced her back in May after he had in Miami.
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