Major baby accomplishments

Neve, my sister's daughter, rolled over on her own for the first time this Saturday. It was hilarious how invested we three adults were in her accomplishing this task. I'm not sure Neve fully realized where she was going to end up when she started leaning her legs to one side and then the rest of her followed, with a little help from an arm. She definitely has more control over her muscles than the last time I saw her (at 4 months) however she is moving something almost all the time, and I wonder if these are voluntary or not. No wonder she has to sleep so much!