1. The first time you plan to bake a cake together but accidentally eat the mixture before you put it in the oven.
2. The first time you have a sleepover as adults.
3. The first time everything goes wrong and you know there's only one person in the whole world who you can call.
4. The first time you have lunch with another mother-daughter duo and glug down a whole bottle of wine before the food arrives.
5. The first time you get competitive over whether you're the best mother-daughter duo out there.
6. The first time you realise you absolutely are.
7. The first time you reminisce over something insignificant that happened 10 years ago and it makes you cry.
8. The first time you tell each other a massive secret.
9. The first time you defend the other one without knowing what she did.
10. The first time you take a goofy selfie together.
11. The first time you throw each other ~that~ look and leave immediately.
12. The first time you dress the same by mistake.
13. The first time you analyse a family event on the way home in frankly unnecessary detail.
14. The first time you decide to hate someone purely because they were mean to your mum.
15. The first time you both blank some girl who teased you at school in the supermarket, even though it happened 15 years ago and you really should be over it by now.
16. The first time you have a proper screamy fight.
17. The first time you meet each other's S.O.s.
18. The first time you don't know if everything will be OK, but your mum tells you it will, so you believe her.
19. The first time someone else tries to bitch with you about your mum and you're like NOPE.
20. The first time you make a sneaky exit from a BBQ together and grab a handful of crisps on the way out.
21. The first time you judge the same thing you shouldn't really judge and you can't tell anyone.
22. The first time you live in different cities.
23. The first time you miss each other so much you cry.
24. The first time you get scared of ageing and then look at your mum and stop being scared because whoaaa your genes are good.
25. The first time you deal with a family tragedy together.
26. The first time you send each other a care package when you're ill.
27. The first time you write each other letters.
28. The first time you share a friend.
29. The first time you cancel plans with friends to hang out with each other and do nothing.
30. The first time you go on holiday together. But not a family holiday, a friends holiday.
31. The first time you know what each other are thinking before you say it.
32. The first time one of you achieves something big and the other is so proud she could actually pop.
33. The first time you go out to eat and the daughter pays.
34. The first time one of you is going through something sad and there's nothing the other can do to help it.
35. The first time you cuddle all night as adults.
36. The first time someone else tells you that you're similar and you feel immeasurably proud.
37. The first time you talk about periods together.
38. The first time you talk about sex together.
39. The first time you try out a new face mask together and your faces go all blotchy.
40. The first time you spend a whole day binge-watching TV in twosies.
41. The first time you borrow each other's clothes and accidentally on purpose forget to return them.
42. The first time you get take-out for four, for two.
43. The first time you support each other's career decisions, even if you think they're a bit rubbish.
44. The first time you watch the same TV show in different places and text each other throughout it.
45. The first time you don't like one of her friends and you have to tell her.
46. The first time you complete a whole jigsaw together.
47. The first time you ask each other something you could just use Google dot com the website for.
48. The first time you stick up for each other in front of a massive group of people.
49. The first time you proofread each other's scary work emails.
50. The first time you simultaneously start laughing and you're not really sure why.
51. The first time you're in a massive grump and you take it out on her.
52. The first time you have to suck it up and say sorry.
53. The first time you imagine whether you'd be friends if you were the same age at the same time.
54. The first time you realise you'd obviously be BFFs.