When one thinks of service in D/s, usually a picture of the sub serving the Dom comes to mind. The sub may cook, clean, do laundry, prepare clothes for the day, etc.
Sometimes it works the other way. Despite the assumed standard, a Dom can serve the sub to make her life easier. Recently MS has been stressed and overworked. It took time and energy away from D/s. After discussion, I decided that increasing my part of the chores would help her reduce stress and give her more time to focus on us and D/s. I am doing it to help her and our relationship. It doesn’t make me any less of a Dom, as I am taking care of her, just in a non-traditional way compared to the classic views of D/s.