Former Girls Next Door star Kendra brought the men in her life - former American footballer hubby Hank and four-year-old son Hank Jr - to the Safe Kids Day in California on Saturday afternoon (5 April).
Kendra looked happy and relaxed in simple black trousers and a white T-shirt, which showed off her growing baby bump.
The blonde beauty is expecting a baby girl in May.
Despite looking happy at the weekend's event, Kendra, 28, has admitted that she's finding her second pregnancy tough going, partly because of the position the baby is lying in.
She told Us Weekly earlier this month: "I'm feeling like crap. I've come to that point of pregnancy where I pretty much give up. I haven't been able to work out because I'm in so much pain. I'm just lying in bed in pain.
"It's so brutal. She's crushing my pelvic bone. I can't even walk anymore."
Kendra announced her second pregnancy in October 2013, and then confirmed that December it will be a baby girl.
Last year, the bubbly star said that she and Hank had timed the pregnancy perfectly to fit between filming schedules for their family reality show. "We planned this perfectly to be right after the season so we have a little time off and I have time to puke and just be in a cave!"
She added of Hank: "My husband is so excited. He just thanks me every day for having his children. He takes such good care of me. I couldn't have found a better man."
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