As a domme who does this in the UK , we typically wouldnt pay you to get your fetish indulged.
The only exceptions would be if you found someone who needed a paid model, or filming sub (even then you'd get "paid" in getting a clip and session for free.
The only model ive ever paid or my fellow bbw dommes would pay for are smaller women because of contrast and also because women subs are very rare.
Sorry to burst your bubble a bit, but hope thos helps x
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