Their very first tea party for two.
Seeing them grow up and become friends is the best. Soon their age difference will barely be noticeable. She'll start talking just as much as him. Their feet will reach the floor at this little table. They'll have boy toys and girl toys instead of one big pile to share.
For now though, he calls her name and says, "time for a picnic!" And she giggle-screams and runs to him. He asks her if she would like sugar. She drinks her tea like a lady.