There are a lot of people who really are worried about making a mistake with women. They are honestly terrified that they will misread things and end up doing something that they can't take back.
The thing is, avoiding these “grey areas” and miscommunications is actually really easy. You use your words and ask. You get your partner’s enthusiastic consent.
Problem is, we treat asking for consent as this weird, awkward thing. But it doesn't have to be.