We stand side by side in front of the mirror. Our arms and legs are slick with sunscreen. Mum recalls a day earlier, when Dad stood just here and half-heartedly applied sunscreen to his face so that almost none of it was rubbed in, then asked her if his face was done.

‘We should both do the same to him,’ she says, and we apply the sunscreen, leaving large white streaks and blobs all over our faces.

‘How’s this?’ she says. She begins to giggle. So do I. We can’t stop.

We are doubled-over, still laughing, when Dad comes in to use the sunscreen. Mum attempts to straighten up and ask about her face. Two words, a glance at me, and she dissolves into laughter again.

Dad shakes his head at us, not sure why this recycled joke is so hilarious. Tears rolling down our cheeks now, neither are we.