Many online fans are falling in love with “So You Think You Can Dance” real-life couple, Taylor Sieve and Lex Ishimoto, after their performance during Monday night’s episode.

Sieve and Ishimoto, who are now in the top four along with Kiki Nyemchek and Koine Iwasaki, stunned the crowd with their sweet routine choreographed by Mia Michaels, according to Just Jared Jr. Many people were surprised — in a good way — to see the both of them kissing on stage while dancing.

Some were completely shocked when they heard that Sieve and Ishimoto, who are both 19, are actually dating.

“I want this piece to be about the kind of love that takes your breath away sometimes and feels like you’re falling. Have you ever experienced that kind of love before?” Michaels asked the couple during a video clip before they entered the stage, Reality TV World reported.

“I’m experiencing it with her,” Ishimoto answered.

“We’re actually in a relationship,” Taylor admitted while smiling.

OH MY GOD I JUST WATCHED MONDAYS #SYTYCD @SieveTaylor @lexishimoto IM SOBBING I LOVE YOUUUUU THANK YOU — Kylie Owens (@KylieEsther) September 22, 2017

I’m so late but I HAVE NEVER CRIED HARDER THAN I DID WHILE WATCHING LEX & TAYLOR’S DUET ON #SYTYCD I am in love with them & Mia Michaels — Madisen McMurray (@madimaymac) September 21, 2017

I’m literally crying watching Lex and Taylor and knowing that they are in love 😭😍 #SYTYCD pic.twitter.com/3a0GZoRDQ4 — Denise (@eurodpt) September 19, 2017

Andddd the world just fell in love with Lex & Taylor.😢😍😍😍 #SYTYCD — Bre Sharkey (@bresharkey) September 19, 2017

I’m still out here fangirling over Lex and Taylor #SYTYCD pic.twitter.com/cjXDrgHazE — gen (@niallliciousss) September 19, 2017

WAIT, WHAT?! LEX AND TAYLOR HAVE BEEN IN A RELATIONSHIP ALL ALL THIS TIME?! WHAT A TWIST!! #SYTYCD pic.twitter.com/dKhg9AQmiw — Dan R. (@dsrbroadway) September 19, 2017

Guys @DANCEonFOX wrecked me tonight. KiKi and Jenna 💃🏻🕺🏻 then Lex and Taylor are IN LOVE 💏 this was best finale ever #SYTYCD pic.twitter.com/1C5qqm6b5K — BirdIsTheWord (@birdisthewyrd) September 19, 2017

#SYTYCD Mia Michaels always shows up to show hope, blossom and Love. Beautifully expressed Taylor & Lex ( Sara B & Jason M perfect audio!) — Cynthia C (@ChiCoop3) September 19, 2017

The judges were also moved by Sieve and Ishimoto’s performance.

“I feel like a weird proud parent,” one of the judges, Mary Murphy, said.

“To see your love grow on the stage in more ways than one is a beautiful thing. This means a lot to me and Nigel that this happens with some of our past cast and they stay together. It’s part of our legacy of this rich show.”

Nigel Lythgoe, meanwhile, complimented the couple on their stellar choreography and how they managed to bring out the emotions of the judges and viewers.

“Everyone that’s ever been in love will be so touched, not just by that routine but how you performed it,” he said.

“All I know is that me and my boyfriend have a lot of kissing moves to work on. That’s all I know,” Vanessa Hudgens said to the couple with excitement.

Ishimoto started honing his dancing skills at the age of 7 when he was taught to dance hip-hop and ballet at West Coast School of the Arts in Costa Mesa, The Orange County Register reported.

Sieve, meanwhile, began her training at Larkin Dance Studio in Minnesota before she rose to fame. She was also the Senior Miss Dance KAR of 2015 and the Senior Female Best Dancer at The Dance Awards in Las Vegas in 2016.

Images via Instagram / sievetaylor (Left, Right)