B-fold, I must agree. I can't imagine a truly "significant other" I have ever had who would go for this sort of thing at all, and if they did, I can only imagine the whirlwind of jealosy it would create.
Now with an insignificant other, it might be a blast. I have to say might be, because as long as I am with Mrs. Benchmonster, we are definately talking in the realm of the theoretical here.
B.