I'd say your partner has to do the looking. The person has to be .highly compatible with him and be able to accept you as the pet.
This could work for me if you mean what you say. You'd be my maid, massage therapist, PA and nanny. You wouldn't be having kids with our shared partner because it's easier for me and we wouldn't have sex unless I want to treat our partner. He could have sex with you. It would be cool.