Or a dad, or other primary caregiver, but you know what I mean.
Like - actually sleep in a tiny toddler bed with a poorly toddler in it.
Or, drink out of a cup that your child has been drinking from, even though it has bits of spit and food in it now.
Or, kiss a child who is streaming with snot and not wipe your mouth afterwards.
Or, sit in the world's most uncomfortable position for an hour, because you are enjoying the cuddle so much.