Paris Hilton Monkeying Around with Boyfriend Zylka

Paris Hilton and actor Chris Zylka had an eventful day at a zoo on Sunday. Zylka and his girlfriend Hilton, who is known as one of the biggest animal lovers, spent time with monkeys and cubs.

The happy couple posed for the pictures as they 'monkeyed around,' according to Hilton, who shared all the photos of her visit to the sanctuary on Instagram. She even posted an adorable photo of her kissing boyfriend with a caption, "Looks like someone's getting jealous."

Hilton's friend and fashion designer Brandi Howes also spent some time with the couple on Sunday. The trio looked comfortable in the company of monkeys and cubs.

"Had the best time at the @AkumalMonkeySanctuary. Amazing what they do for all these rescued animals," she captioned one of the images on Instagram.

"Monkeying around with my love," another caption read.

"Cuddling cubs with my #GlitterSister @BrandiHowe," she posted on Instagram.

The Glittersisters braided their hair beautifully for the occassion, while Bradi wore a bun, Hilton teamed it up with a Head scarf and Aviators later. Even their tops had similar braided designs over it. They had glitter on their eyes, Keeping styling to the minimum.

Hilton and Zylka have been in a relationship since February and the pair has been often spotted spending time with each other.

"It's like the meaning of life to have your own family.'And I'm happy that I waited to find the right person. I'm so in love. He's the man of my life. We're best friends," Hilton told ES magazine in an interview.

Hilton also hinted at settling down with Zylka and starting a family with the actor. "It's just the meaning of life to have a family of your own and bring children into the world, so I cannot wait to do that one day, " she told E! News in an interview.