Man's profile picture creates a very rude optical illusion

At first glance, you may be wondering what the heck is going on in this profile picture...

The image appears to show a naked man lounging with his legs apart on a boat with his girlfriend.

But look again and it becomes clear that the photo is entirely innocent...

Shared online by someone who spotted the hilarious effect of their friend's profile picture, it's now been viewed over a million times already!

'At first, in the thumbnail I thought he was totally naked. then I realised that was his hand,' one person wrote on Imgur.