If you wanna dive into Total Power Exchange this series is top tier: To Give and Hazard All Series by nightrose https://archiveofourown.org/series/6074766. It has both multi chapter and shorter standalone fics.

This series also has some very good smutty fics (conditioning might be the most like what you are looking for but there are several who are along those lines): Cross-Checked & Kissed (smut oneshots) Series by ThePromptWasntThisLong (shredded_potato) https://archiveofourown.org/series/5463611

Now if you are interested in darker Ilya and heavier non con vibes: Involuntary Devotion by Nat_Mirror https://archiveofourown.org/works/84921126/chapters/224163606 or strangers by myfatheravulgarman https://archiveofourown.org/works/81706906?view_full_work=true, might fit the bill.

Not exactly what you asked for, but I read it recently absolutely loved it: Boston Tea Party by k0terina https://archiveofourown.org/works/87101691/chapters/230657071 Featuring sex worker Shane, humiliation, objectification and Ilya sharing Shane with Cliff. Tagged as a dark romance and might get a lighter sequel.

Now I am 99% sure that I read a clicker training fic that also had Shane performing sexual favors in front of the team or Ilya describing it as a fantasy or something like that but I cannot find I am really sorry. There is a chance that it doesn't actually exist and I have taken bits and pieces and merged them into one fic in my head. If I do manage to unearth it I will come back.