Pete Davidson celebrates sister Casey Davidson's graduation amid Kim Kardashian split

Star Pete Davidson made first public appearance since his 9-month relationship with lover Kim Kardashian ended. 

The SNL alum is busy spending a good time with his family on his sister's graduation. 

Davidson took to his Instagram page and shared a shot of Casey Davidson's big day, her graduation ceremony and captioned, "A beautiful day celebrating @caseydavidson!! PA! We are so proud of you!! Love you to the moon and back...Beautiful inside and out! We are so blessed XO." 

Pete showcases his love for the camera, flaunting his million-dollar smile. 

It’s unclear when the pictures were taken as Davidson has been overseas in Australia shooting his new movie "Wizards!" and production is expected to run throughout the summer, E! News reported.

Casey has completed her studies from Pace University in New York City and is currently in the Lennox Hill Hospital's physician assistant program

She sported a white lab coat for the day and was thrilled as ever.