Over 1,000 attendees at the Cross Church in Springdale, Ark. witnessed her first kiss (ever!) with her new husband

Credit: David Welker

A day that Jill Duggar and her family – including father Jim Bob and mother Michelle, plus her 18 siblings – had been eagerly anticipating finally arrived on Saturday. And it was sealed with the bride’s very first kiss.

Duggar, 23, married Derick Dillard, 25, before an audience of over 1,000, including over 100 Duggar immediate family members who traveled from around the country to attend.

The stars of TLC’s hit reality show 19 Kids & Counting were all dressed in their wedding finery and participated in helping make the day special. That included the Duggars’ youngest daughter, Josie, 4, who was born prematurely and now is a thriving, healthy little girl.

“She got on her princess dress finally,” Michelle, 47, told PEOPLE, laughing as Josie, who served as one of Jill’s flower girls, bounced around her. “She has been begging to put it on since she got it. That is the most awesome princess dress ever.”

Jill had a princess dress of her own, from Ava Laurénne Bride in Fredericksburg, Virginia – an Allure Romance gown with Swarovski crystals and a chapel length train that co-shop owner Wendy Rivera helped change from an originally strapless dress into the “modest, yet elegant” gown the bride wanted, she says. Using lace from a veil, Rivera and seamstress Moni Reeise created a top that fit in perfectly with the rest of the dress.

“She wanted something modest, but not predictable,” says Rivera, who also performed the song “The Prayer” along with husband Gabe at the wedding ceremony. “It fits like a glove. It is perfection.”

The couple sealed their vows with their very first kiss ever – and then enjoyed a reception outside the church with guests. The party didn’t end there, though. Jim Bob, 48, reveals that over 600 people came over to the Duggar home afterward to continue the celebration.

“It was a party to end all parties,” he tells PEOPLE.

For more on the wedding, including exclusive photographs from the ceremony and reception, pick up this week’s issue of PEOPLE, on newsstands Friday