John Mulaney Enjoys Sunny Father's Day at the Pool with Olivia Munn and Son Malcolm: 'He's the Best'

The comedian, 41, shares Malcolm, 2, with his partner Olivia Munn, 43

<p>Arturo Holmes/Getty; John Mulaney/Instagram</p> John Mulaney, Olivia Munn and son Malcolm

Arturo Holmes/Getty; John Mulaney/Instagram

John Mulaney, Olivia Munn and son Malcolm

John Mulaney is celebrating an extra special Father's Day.

On Sunday, June 16, the comedian, 41, shared an adorable photo on Instagram of himself hanging out on the floor next to his 2-year-old son Malcon, whom he shares wth his partner Olivia Munn, 43.

While Mulaney didn't caption his post, Munn documented the holiday on her Instagram Stories, sharing a cute video of the father-son duo walking over to a pool.

"He's the best. And he's the best. Happy Father's Day @johnmulaney 🥹," she wrote over the Story.

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Related: John Mulaney Celebrates 'Incredible Mommy' Olivia Munn on Mother's Day: 'Most Loving and Silliest Relationship'

In May, Mulaney celebrated Munn as he shared a sweet photo on his Instagram Stories, showing the actress and the couple's son Malcolm posing together.

"My son has the most incredible mommy and he knows it," Munn wrote. "It's the most loving and silliest relationship I've ever seen. Happy Mother's Day, Liv."

In March, Munn shared on Instagram that she'd been diagnosed with breast cancer, posting a series of photos from her time undergoing treatment over the last year. Part of her message talked about what her family has meant to her during this time.

<p>Olivia Munn/Instagram</p> John Mulaney and son Malcolm

Olivia Munn/Instagram

John Mulaney and son Malcolm

“I'm so thankful to my friends and family for loving me through this. I'm so thankful to [Mulaney] for the nights he spent researching what every operation and medication meant and what side effects and recovery I could expect,” she wrote.

"For being there before I went into each surgery and being there when I woke up, always placing framed photos of our little boy Malcolm so it would be the first thing I saw when I opened my eyes.”

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This past April, Munn shared a heartwarming video on her Instagram Stories of her son as he gave her a present.

"You are so beautiful," Malcolm sweetly said as he walked towards his mom and handed her a small purple flower.

"Oh my gosh, thank you, Malcolm," Munn said as her son turned away, showing the back of his denim jumpsuit, which read, "I love my mummy."

"His little voice 🥹," Munn wrote across the video.

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