Finding out the facts of life is usually an awkward, slightly terrifying and sometimes hilarious experience.
From your parents being too embarrassed to give you the full low-down, to the classmate who SWEARS they know it ALL, it can be tough to get all the details you need.
It turns out this is something Saoirse Ronan had to deal with as well - here she is explaining how learning about the birds and the bees cost her money!
Every day's a school day! #SaoirseRonan & @HowleBilly reveal to us where they learnt about sex #OnChesilBeach pic.twitter.com/jplF9oWJYI
— ODEntertainment (@ODE) May 10, 2018
Cover image via The Late Late Show/YouTube