A guy was shocked to find a girl he'd never met before using a picture standing in his bathroom as her display picture.
Student Mark Kowalczyk, 19, from Morgantown in West Virginia swiped right on a girl, but was confused as to how she had been in his house, however, he later realised she had been to a party at the property.
He told BuzzFeed: ''I was like, 'Oh my god, that's my bathroom!'
''I assumed that since we had a couple parties before, it must have been from one of those nights.''
And the mystery girl called Jenna confirmed she had in fact attended a get-together and used the restroom to get a selfie in the mirror.
She concluded: ''When I went into the bathroom, I felt the need to take a mirror picture and posted it later.''