No no no no no no no.
Do not go outside your marriage for sex behind your woman back and expect anything good to come from it.
THe most chaste girl in the world, relgious upringing, frigid, not sexually adventorous, unwilling to indulge in any fetish or kinky or pain or bondage, my unwaving faith and opinion, inside any woman like this is a raging sex goddess just waiting to be unleashed.
But unleashed she must be, and that involves work on the man's end.
This work, for him to be the man that gets his woman phsically stimulated with not words, but by his own actions and behavior.
Stop talking about sex, stop talking about this fetish or discussing this or that. May as well be talking the weather or debating politics as it would be more successful than a man trying to use mere words or logic or asking to create sexual attraction.
The man who asks his woman to do this or that sexually which she says is "weird" or makes her uncomfortable, he may as well be asking her to sprout wings and fly so unnatural and unsatisfying it will be to her.
But for him to be the man that has already lit his woman on fire, and the pieces already in place: his attitude, his expectation, his dominance, when these things then he will see his woman just begging him to take her, or begging him to let her do this or that to him.
But it must be in his leadership and strength, and not from mere asking or negotiation, and no matter how weird or strange, even some dark sexual behavior to make even a New Orleans prostitute blush is not beyond expectations.
Sexual appetites, the woman will not indulge them if she feels her man is not worthy.
This only means pieces of the sexual structure are not all in place.
So put them in place and avoid going outside the marriage for sexual appetites!
Unleash the sex goddess in your wife, get to work doing this and not wondering some nonsense about some other provider!
This is the way exploring this sexual fetish and many others, including even darker and darker one's in your woman's secret places in her mind she not comfortable sharing yet.
Get her unleashed!