The 38-year-old Duke of Cambridge caused mouths to drool when he lifted up his shirt to reveal his buff arms.
No, this wasn't a thirst trap but it quickly turned into one.
William's biceps popped when he sat down for his first COVID-19 shot on Thursday, raising awareness of Prince Harry's mission to get people around the world vaccinated -- just one day after publically ignoring his little brother and Meghan Markle's third wedding anniversary.
Posting a photo to his Instagram with his wife Kate Middleton, William proved the shot was painless as he let a professional stick it in his arm.
Wearing his mask and a standard blue long-sleeved sweater, the dad of three hiked up the sleeve and flashed his muscles.
Showing smoldering definition in his biceps and shoulders, William left his Instagram followers gagging!
"On Tuesday I received my first dose of the COVID-19 vaccine," he captioned the photo. "To all those working on the vaccine rollout - thank you for everything you’ve done and continue to do."
Despite the sweet message, all anyone could focus on was his buff arms.
"Prince William has some guns... 😱💪😂❤️," one person wrote. "Wasnt expecting a gun show this early but happy I got an invite," added another. "No wonder The Duchess of Cambridge looks always so happy💪🏻👀," commented a third.
William and Harry are at odds over a lot of issues right now, but one thing they can agree on is getting the vaccine.
William's little brother has been advocating shots to be available to all those around the world. He even teamed up with stars like J Lo, Ben Affleck, Selena Gomez, and President Joe Biden at the Global Citizen's VAX Live: The Concert to Reunite the World earlier this month.
As RadarOnline.com reported, "ambushed" Prince Harry is gearing up to drop more family "truth bombs" when his project with Oprah airs on Apple TV+ this Friday.
He and William have been feuding for months following Harry and Meghan's explosive interview with Oprah where they claimed racism within the palace.
Meghan also claimed she received zero support from the royal family and experienced suicidal thoughts.
“Harry is demanding the Meghan be part of the official ceremony. She will not be able to attend in person because of the couple's second child, but Harry is pushing to have comments prepared by Meghan included in the event or a video message featuring his wife released to the media the same day the brothers unveil the statue," our insider revealed.