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Heidi Montag and Spencer Pratt Celebrate Son Gunner's Preschool Graduation: 'Tears of Joy'

“I have had so many tears of joy and reflection,” Heidi wrote on Instagram with pictures of her preschool graduate

<p>Heidi Montag/Instagram</p>

Heidi Montag/Instagram

Time is flying by for Heidi Montag Pratt and Spencer Pratt!

The parents of two took to Instagram on Thursday to share that their five-year-old son Gunner Stone has graduated preschool.

Related: Heidi Montag Celebrates 14th Wedding Anniversary to Spencer Pratt: &#39;It&#39;s Been a Dream&#39;

Alongside a series of photos from Gunner's graduation ceremony, Heidi expressed: "Time is flying by! Gunner has graduated from preschool! Oh my gosh, I have had so many tears of joy and reflection. 🥺💕."

The photo collection showed the graduate dressed in formal attire with a light blue bottom-up shirt, dark gray dress jacket, and khaki pants. The proud parents gifted the graduate a sunflower bouquet attached to a colorful, star-shaped celebratory balloon which he held on to while taking a sweet photo with his mom.

In another snap, Gunner smiled while wearing his white graduate hat — tassel and all — while posing for the camera with a fellow graduate in another fun photo.

<p>Heidi Montag/Instagram</p>

Heidi Montag/Instagram

Related: Heidi Montag and Spencer Pratt&#39;s Sons Celebrate Easter in Matching Ralph Lauren Looks: Photos

Spencer also participated in the celebration by showcasing pictures of the ceremony on his Instagram Story, including a glimpse of Gunner on stage. The Hills alums are also parents to son Ryker, whom they welcomed in November.

<p>Spencer Pratt/Instagram</p>

Spencer Pratt/Instagram

Before Ryker's arrival, Heidi took Gunner on a special mother-son bonding trip to prepare him for his baby brother’s birth.

She shared snippets from the vacation on Instagram, explaining in the caption: "I wanted to have a special alone trip with @gunnerpratt before the baby comes. It was such a soul filling trip taking my angel to the place that will always feel like home. Such a blessing to have so much family time. 🙏🏼."

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Heidi praised Gunner for being "loving, sweet, funny, fun, thoughtful, strong, smart" in a birthday tribute on Instagram that included photos and videos from his childhood.

"I thank God on my knees for you every day," she said. "Being your mom has been the biggest blessing."

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Read the original article on People.