Lionel and Sofia's appearance together comes just a few days after the model was spotted with her rumored beau, Scott Disick, in Cabo San Lucas, Mexico.
Upon learning of his daughter's involvement with the 34-year-old reality star, the "Hello" singer told Us Weekly last month that he was "scared to death."
"Have I been in shock?! I’m the dad, come on,” Lionel expressed. “I’m scared to death, are you kidding me?"
See more of Sofia and Scott's recent vacation in the video below.