A I can hear the fatigue and frustration in your letter. An almost 2-year-old and a 3-year-old in the house? That is full-on emotional and physical work, often with few breaks and little reward.

And I often wonder, do all parents have such a hard time with their 4-year ... matter how old you are. The AAP has a helpful chart to break down exactly what’s normal sexual behavior in children.

Not once did he stop to wonder if I, his guest, might find such behavior awkward. And I didn’t, of course, because Clark was 2, and what can you expect? Exactly what can be expected of a 2-year-old is ...