Blake Lively reacted to Ryan Reynolds sending Sandra Bullock a reminder of when they were naked together

If there's any celebrity who will use social media like a normal person, which is to say being completely weird on it, it's Ryan Reynolds.

He was quick to be the first to respond to Hugh Jackman's recent post celebrating the new year where he ran into the sea.

Elsewhere he shared a picture of Taylor Swift and his wife Blake Lively, only he'd photoshopped their faces out and replaced them with his and Travis Kelce's.

Some of his Instagram activity is so out there that fans occasionally wonder whether he's been hacked when he actually posts the normal stuff as he did in a birthday post for Lively.

That's because he pulls stunts like sending his The Proposal co-star Sandra Bullock a birthday message she wasn't likely to forget in a hurry.

Instagram/@vancityreynolds

Last time it was Bullock's birthday he posted his best wishes to her on Instagram, which she doesn't even have, accompanied by a clip of their nude scene from The Proposal.

"Happy Birthday to the inimitable and stunning Sandra Bullock!" he wrote on the social media site.

"For your birthday this year, I got us both intimacy coordinators. And an HR department. And clothing?"

Obviously the post went viral and one of the people who showed their appreciation for it was none other than Lively, who liked the post her husband had made.

As for the scene, it's something both Reynolds and Bullock have discussed a few times since the movie released all the way back in 2009.

Bullock said she had to avert her gaze to avoid seeing Reynolds' ball sack, and this is because things became 'unstuck' while they were filming the nude scene together.

Walt Disney Studios

The pair were wearing very little as they were supposed to be naked in the scene, but for moments like this the actors get modesty coverings to make sure their privates remain private.

Only some of the coverings didn't always cover everything, though Bullock said it wasn't particularly sexy as all that meant was they'd have to start shooting the scene again.

The 59-year-old said she had to lay down some ground rules ahead of shooting the nude scene.

"I will do this naked scene only if I can be humiliated and funny," she told the About Last Night podcast of baring all in The Proposal.

"You will not see me trying to attempt being sexy naked - in real life or onscreen.

"There's just no point in it! It was for that reason, with a friend that you trusted comedically, and safety-wise I knew I was in the presence of safety."