Well, I have come across the “F—ing” machines before, they even have them on cable on “Sin cities” show ( Bravo “arts” channel I think.) Which are elaborate contraptions that seem to be an off shoot of the S&M bondage fetishes.
But I have set wood on fire from the friction caused by a reciprocating saw just like that, I have also burned myself because it heated up the metal to such a degree ( they cut through pipe, not to mention screws, nails and bolts … it’s why you use them.) that even after I put the saw down the metal I had cut through was still hot enough to sear flesh.
I have to wonder just what sort of woman would find that “stimulating”? Even with the proper non saw edged attachments and a bucket of lubricant, I can’t imagine that it would be anything other than painful and bruise inducing.
Oh well… for me I just can’t get past the mental image of being in the heat of passion, saying. “just a moment my love, I have just the thing”, reaching under the bed and … TA DA! Mr SAW! I giggle / snicker everytime I think of it. I guess my kink-o-meter stops somewhere around “spray can of whipped cream” 😉