The Twins Wrestle

BUGGY is pretty independent. While she likes Buddy, she can play on her own. He craves constant interaction, especially from her. While let loose on the floor, she can crawl away from him, and he'll try to follow. He can't crawl, he can only roll, and not necessarily the direction he wants to go. So when he captures the object of his desire, her, he holds on tight.

"I got you now!"
"Let go! Dad!"