Jazz will "make biscuits" on two different throw blankets I keep on my bed. It's so funny to watch her do it because she gets so intense.

Scout has started doing it on me when she comes to sleep with me at night but she didn't do it the first few months we had her, just the past two months.

Ripley has never done it.

I think it is so sweet to watch them do it and hear them purr.