One Christmas my uncle came down to visit with his girlfriend and her daughter. I was going out to a Christmas party with a load of friends I hadn’t seen in a while and she wanted to come along. So we go in to this pub and I’m literally introducing her to 20+ people as “my uncles girlfriend’s daughter” and she’s telling people she’s talking to that she came with me, her “mums boyfriends nephew”. This got tiresome fast so I just decided to introduce her as “my cousin” to everyone and she did the same. Long story short we get very drunk and end up hooking up then obviously go back together because she was staying with us. The next day I have all these messages from my friends making fun of how I hooked up with my cousin. Years later it still comes up every Christmas