File idea:
If a rubber mask is put on your face you will loose your view of youself as an independent person (as you are anonymous because of the mask) and become an obedient slave to whoever put the mask on you. Your ability (and willingness) to talk depends on the design of the mask. The effect lasts as long as the mask is on you.
Optional twist:
Even though you normally weren't attracted to rubber before, if the rubber mask is put on you, you will feel a desire to wear more of it to cover your body completely making you 100% anonymous and just a slave object without personality. If your master presents more rubber clothing to you, you will just simply want to put it on. The moment the rubber mask is removed from you, your view on rubber returns to what it was before.