CEDAR PARK -- There are more than 100 sets of quintuplets in the United States.
One set in Cedar Park, outside of Austin, celebrated their seventh birthday Thursday.
On July 31, 2007, Jayson and Rachelle Wilkinson's lives changed in a big way.
With 50 little fingers and toes, five loud sets of lungs and a media frenzy - Kassidy, Kaydence, Rustin, Kyndall, and Ryder - a set of quintuplets arrived. Those chubby-cheeked babies are now second-graders, mixing things up with their mom and getting ready for their big birthday celebration.
With so many kids, the Wilkinson family is used to attracting attention. They even had their own show on TLC when the 'quints' were younger.
As the kids grow up, their parents are making sure all their children know they're special and loved.
'I really can't believe it's been seven years. That's really wild,' said their mother, Rachelle Wilkinson. 'They're just so full of personality, they're really coming into their own. It's definitely gotten a lot more hectic, busy and loud. It's really loud all the time!'
Kassidy is the oldest of the 'quints.'
'We sometimes call her the little mommy because she loves to help out,' Rachelle said.
Then there's Kaydence. Kaydence loves to play games her older siblings make up.
'She's always happy, pleasant [and] easy-going', said Rachelle.
Red-headed Rustin is on the mischievous side, and he likes to play basketball.
'He's also the biggest teddy bear you will ever meet,' Rachelle said.
Then there's Kyndall. She enjoys playing with her stuffed animals.
'Kyndall is a little spitfire. She's clever and scheming a little bit,' said her mom.
And there's Ryder. He loves playing with leggos.
'He's a people person,' Rachelle said. 'Like when he goes to school, he's everybody's best friend.'
Riley and Kaiya Wilkinson were 7 and 4 when their bouncing baby brothers and sisters were born.
They take their roles as big brother and sister seriously.
'Most of the time I just tried to help out where I could,' said Riley. 'It's really fun having them there.'
Rachelle says at times a house filled with so many kids isn't a cakewalk.
'People always say, 'Hey, what will you do when they're all driving?' and I think, 'Uggggh! I don't even want to think about that yet.' I'm just focused on getting them through elementary school,' Rachelle said.
The family said they're taking it all one day at a time.
Fun fact: Parents of quintuplets will change more than 35,000 diapers before their kids are potty trained.