Your opinion, and Mistress Tissa's, and mine, are wholly irrelevant. In some jurisdictions, BDSM when done for money is prostitution, full stop. In the state of Nevada, for example, prostitution is "Engaging in sexual conduct with another person in return for a fee, money, or something else of value." And "sexual contact" is "Sexual intercourse, oral-genital contact, or any touching of the sexual organs (or another intimate part) of a person for the purpose of arousing or gratifying the sexual desire of either party." (https://statelaws.findlaw.com/nevada-law/nevada-prostitution-and-solicitation-laws.html). If you tweak a client's nipples in the State of Nevada and accept payment for it, you are legally a prostitute. Full stop, no opinions needed or requested by the state.