AceShowbiz - Chris Pratt and Katherine Schwarzenegger Pratt enjoyed a "nice lunch" in Southern California, but it was Pratt's playful Instagram post that caught everyone's attention. The "Guardians of the Galaxy" star couldn't help but poke fun at his wife's sun protection gear, writing, "Me, I love ninjas. So it's kind of a win-win."

Katherine was photographed wearing a white baseball cap, sunglasses and a Coolibar UPF 50+ hoodie that covered her entire face, leaving only a small opening for her eyes. She shared the same photo on her Instagram Stories, tagging the hoodie and adding, "Me [a handshake emoji] ninjas."

Beyond the sun protection humor, pregnancy rumors have swirled around the couple, with a source telling PEOPLE last month that they are expecting their third child. The couple, who married in 2019, already shares daughters Lyla Maria, 3, and Eloise Christina, 2. Chris also has an 11-year-old son Jack with his ex-wife Anna Faris.

Katherine Schwarzenegger Pratt has been vocal about sun protection, sharing her favorite skincare products and reminding her followers to prioritize it on social media. She has also emphasized raising her daughters to be comfortable and confident in their natural beauty.

"I'm raising my daughters to be comfortable and confident in their own skin without all the glitz and glam that sometimes take over Hollywood," she told PEOPLE earlier this year.

Chris Pratt has similarly expressed his admiration for his mother-in-law Maria Shriver, as a role model for parenting. "She's brilliant, she's funny, and she's so involved in the lives of her children," Pratt said during an appearance on "Today". "I think she holds them accountable. When Maria walks into the room, you stand up."

Despite the pregnancy rumors, the couple has not publicly confirmed or denied the news. Their latest public appearance together was at the premiere of "Garfield" in May, where they walked the red carpet hand-in-hand.