It's been two years since Miley Cyrus did a twerk at the MTV Movie Awards, but your mum has only just stumbled upon it through her Facebook feed.
"Look. Look at this." She's scrolling through her friends' statuses, an endless sea of Britain First memes. She has 973 Farmville notifications. "Oh, oh. Found it. Here it is. That Hannah Montana girl did a weird thing with her bum. Look. Watch. Look at this. She's outrageous. Do you do this?"
Viral videos reach your parents at the same speed that radio waves find distant alien species. Your mum talks about Gangnam Style more than she's ever talked about you, and your dad's ringtone is and will always be Chocolate Rain.
Khloe Kardashian and Kylie Jenner are a bit like your mum and dad in that respect. In that they twerk, or something? We kind of lost track back there.
Maybe Kylie Jenner and your mum are mates? How would you know - you never call. Watch the above videos of the Jenner and Kardashian sisters twerking, and then go give her a ring. She deserves it.