Mark Ballas goes hand-in-hand with the word "overprotective" when it comes to his 18-year-old Dancing With the Stars partner Aly Raisman.

After the pair wowed the judges and crowd with their beautiful contemporary dance to "Titanium" by David Guetta featuring Sia, Life & Style chatted with the pair — and Mark revealed he's dead serious about not letting Aly date!

"It's not a joke," Mark tells Life & Style after we asked him what was up with his comment about preventing her from dating. Aly insisted it was a joke, but the 26-year-old pro dancer kept saying otherwise.

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"No it's not a joke! Just because…just no," he said.

But after Mark asked Aly who she would date on the show if she had to pick someone, she knew the right answer.

"You!" she said referring to Mark. He added, "Bam! There you go."

He then admitted that he feels very protective when it comes to the Olympic gymnast. "Absolutely. Of course [I feel protective of her]," he shared. "I love my partners and I love Aly to death. I was really proud of her tonight and it was my first time doing contemporary dance on the show, which was awesome because I grew up doing contemporary dance. And for this dance — especially as a fan of the Olympics — I always watch the women's gymnastics or swimming. That's what I love."

He continues, "So you watch it for two hours and they win a gold medal and you say 'yay,' but you really don't get to appreciate the 16 years of work that this girl has put into it day in and day out."

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This week's theme was "The Best Year of My Life." Aly chose to highlight 2012 — when she and the rest of Team USA went to the Olympics and came home with the gold medal.

"This is a huge challenge since I've never danced with someone before," Aly explains. "I'm used to being out there on my own and used to tumbling, which is something that I have been doing my whole entire life. This [DWTS] is something completely new to me."

Mark adds, "For me, it's very cool to celebrate winning a medal, but the road to that medal is hard and taxing. We wanted to tell the story that way with this dance — and contemporary dance was the perfect style for that."

And it paid off! The lovable couple scored a 27/30 score — a 9 from each of the judges, which landed them at the top of the leaderboard in week four. But did they nab enough votes from America to dance another week?

Find out tonight at 9 p.m. ET on ABC and watch Aly and Mark's beautiful dance below: