One thing I learned 10 years ago: NEVEREVER open a link a 'friend' sent you .... Spoiler: REALLY NASTY NSFW ... trust me on this one! https://en.wikipedia.org/wiki/2_Girls_1_Cup ... without either checking the url or be prepared for ... anything!
Too long but this video was unsettlingly https://vine.co/v/iMJzrThFhDL Link did not work but here You can find it on Vine homepage