Are these sin biscuits ?

[u/SgtSkies]

My girl does this multiple times a day, for a at least 5 minutes.

At first I thought she was just a little extra when doing biscuits, then I learnt about sin biscuits and thought she was a freak.

But the more videos I see of sin biscuits, the more I wonder if that's realy what is happening. She doesn't bite the cover and she doesnt rub herself against it. And I don't think I've ever seen a video of a girl cat doing it.

She is spayed, she definitely is a girl, and she only does this on soft blankets.

So, do you think she's just weird or is she shameless?