Married people

This weekend my sweet, innocent 4 year old niece decided to tell me what married people do. This greatly caught my attention. What could a four year old possibly know about married people?

Austynn: married people get naked and get in bed together. 
Me: (eyes wide big) they do what??
Austynn: they get naked and lay in bed at night and just talk. Because that's what you have to do when you are married. Get naked and talk. 

 Well. Alright then. There you have it.