Emma is quite the hugger. In this example, it's her sister. She hugs her so passionately (meaning too tight, too hard, almost smothering) that Mackenzie ends up falling on the floor. Thankfully, their cousin Rachel was there to hold her up. But her hugging style is not restricted to just her little sister. I've seen it in action on her cousin Claire and our friends' daughter Ava. What can I say? She's very loving and not afraid to show how much she cares about people. That, or she just doesn't understand the word "gently".