Aha, now I understand why you posted "cat"
When I was young I had a cat, and I carried her around all day. For cats it's natural to be carried around, that's in their DNA. Mother cat does it too with kittens. They feel taken care of. I never thought about scratching or biting.
It all comes down to love and respect. Cats sense this. I let a stray cat in my house, it was freezing cold, she was so grateful, and jumped straight on top of me in my bed. I loved her.
She was naughty though. I told her that 2 rooms were off limits. But exactly there she went. Each time she did, I grabbed her in the neck and gave her free flying lesson (without parachute). She must have liked flying. because she kept sneaking in these 2 rooms. And when I picked her up, she did not bite nor scratch at all.
She knew it was self created karma I guess. You know cats have 7 lifes, they know all about karma
Later I heard that "my cat" was known as Terror where I live. And stayed in a house with a woman with 2 big pitbulls. She was immensely terrified of the cat, not of the pitbulls.
So, I picked ghe cat up, and walked to the woman, with cat in my arms. Entering her house she was scared of her cat. I told her she is the nicest cat and put her on the ground.
That moment (out of my arms) it was the first time in my life I witnessed "Satan". It freaked me out, the cat attacked the woman, so I quickly opened the door and she ran out. She still loved me luckily.
So, some people are dog people and some are cat lovers or others are both or none. And cats and dogs sense it.
I would not pick her up, just like that. It's like dating a woman. First date you talk, second date you walk, third date she might give you a hand
Always best to let her make up her mind first
I would think you need not worry at all. Your cat skipped all the dating rules and landed straight in your bed. You could ask your sister, but I know that cats can be Satan (angry) to 1 person and God (loving) to another
Good luck. I am curious what happens next