Jon and Kate Gosselin Reunite!

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Happy birthday, indeed!

Jon and Kate Gosselin were photographed together for the first time in months Monday — the day their sextuplets turned 6 years old. (In April, the two were ordered to take a 3-hour parenting class called Children in the Middle, according to

PHOTOS: Kate's hair through the years

Later that day, Jon took Alexis, Aaden, Collin, Leah, Hannah, and Joel and his twins, Mady and Cara, out for a few hours to celebrate. He was spotted shooting Silly String at photographers.

Kate, 35, threw her sextuplets a pool party at their $1.1 million Pennsylvania home on Sunday — despite 47-degree weather.

Last Thursday, she blogged about her kids' birthday.

"I'm really reflecting these days… my six youngest children are turning six in only a few days! I'm not really sure how that happened so quickly but it makes me happy but, also… well… sad!" she wrote.

"To make my sadness worse, their birthday falls on the same day of the week that they were born — a Monday! And also, like the year they were born, it's the day after Mother's Day! I barely have to start thinking about that day and, yep, hold on, I have to grab a tissue. I gotta catch these tears before they smear my eye makeup!" she added.

PHOTOS: The Gosselin family album

Her new show, Kate Plus 8, premieres June 6 on TLC, the network announced Monday night.

VIDEO: Kate's most disastrous dancing moments

Jon, 33, has said he wants to return to television as well to earn enough cash to pay his $22,000-a-month child support.

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