Unicode has a Love Hotel 🏩 emoji U+1F3E9 and a non-emoji Lips 🗢 symbol character U+1F5E2 annotated as indicating Rated for Sex (from Windings and TV guides, cf. 🗡 Violence, 🗣 Strong Language and 👪 Family). Either of them could be used for a profession ZWJ sequence to represent Sex Workers, allegedly the oldest of professions. It may be doubtful, however, whether a unified graphical representation for Prostitutes (Whores, Hookers), Pimps, Erotic Models and Porn Actors is achievable. For Strippers, the Exotic Dancer suggestion #72 may apply.
Note, that there is also no emoji unambiguously representing Sex.
Unicode has a Love Hotel 🏩 emoji U+1F3E9 and a non-emoji Lips 🗢 symbol character U+1F5E2 annotated as indicating Rated for Sex (from Windings and TV guides, cf. 🗡 Violence, 🗣 Strong Language and 👪 Family). Either of them could be used for a profession ZWJ sequence to represent Sex Workers, allegedly the oldest of professions. It may be doubtful, however, whether a unified graphical representation for Prostitutes (Whores, Hookers), Pimps, Erotic Models and Porn Actors is achievable. For Strippers, the Exotic Dancer suggestion #72 may apply.
Note, that there is also no emoji unambiguously representing Sex.
Sequences
https://crissov.github.io/unicode-proposals/professions.html
Fitzpatrick emoji skin tone modifiers U+1F3FB–F would apply as well, of course.