Chris Evans may have revealed what's hidden underneath his Captain America suit.

The Avengers star set the internet on fire when he accidentally revealed what many are speculating is an image of his penis.

Even his co-stars got in on the action.

Chris Evans arrives at the premiere of Avengers: Endgame. Photo / AP
Chris Evans arrives at the premiere of Avengers: Endgame. Photo / AP

The actor supposedly posted a screenshot of his phone's camera roll on his Instagram story that quickly got tongues wagging.

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He had been sharing a screen recording of his family playing the game Heads Up but when the video ended, a camera roll displayed on the screen, which appears to show a photo of a penis.

Another photo showed a picture of the star's face with the text, "guard that p****y".

Evans quickly deleted the story but not before screenshots started doing the rounds on social media, quickly becoming the number one trending topic on Twitter.

His Avengers co-star Mark Ruffalo tweeted, "@ChrisEvans. Bro, while Trump is in office there is NOTHING you could possibly do to embarrass yourself. See ... silver lining."

While many fans rejoiced at the pic, others said people should leave the star alone.

"My heart hurts for the poor sweet angel Chris Evans," one woman tweeted.

"Can humanity pls finally come together for this one thing and just pretend nothing happened. I FEEL BAD FOR HIM HE'S PROBABLY SO SAD."