Ideas for rough without pulling hair or bruising

My girl is pretty submissive. Probably has higher sex drive than me but also does not initiate. If we get more rough she seems to enjoy it and will verbally say so. She will also say “don’t be afraid of hurting me.” Now I know she isn’t into hair pulling. She is also a bit fragile and bruises easily, so I don’t think spanking or anything of that nature is what she has in mind. I may hold her throat firmly but I would not choke her. Need more ideas for rough that isn’t too rough.