A Covid-19 vaccine appointment at a Canton, South Dakota hospital turned into a marriage proposal for one healthcare couple.

Robbie Vargas-Cortes, 31, a paramedic and EMS supervisor, was scheduled to get his vaccination on December 23rd, and knew his boyfriend of five years was one of the vaccine administrators at Sanford Canton-Inwood Medical Center.

“I wanted for it to be a surprise,” Vargas-Cortes told CNN.

Eric Vanderlee, a registered nurse, told CNN he had no idea the proposal was coming. When Vargas-Cortes rolled up his sleeve and there was already tape on his arm, he thought his boyfriend was jokingly indicating where the vaccine should go, “like a bulls eye or something.”

But Vargas-Cortes had taped a ring to his arm.

“It just kind of dawned on me and I was like, ‘absolutely, of course, yes.’ It was just an amazing moment after I figured it out,” Vanderlee said.

Vanderlee then had to administer the vaccine to his new fiancé.

And within 10 minutes, Vargas-Cortes, vaccinated and engaged, was out the door responding to an ambulance call.

“Congratulations, Eric and Robby!” Sanford Health said in a Facebook post along with video of the proposal.