Hmm..sounds like you have the beginning of a fan fic in which a person becomes a dehumanized lab rat and has painful and embarrassing experiments done on then. Science!!!

For me it's quicksand. There's only a few vids floating around. Maybe 'cause it's too tame.

Now that you mention it, even in jungle movies, you just do not see quick sand scenes anymore.

I could think of nothing worse than sex on or in sand. Abrasive!

www.youtube.com/watch?v=hi5jjXTPtyY

Damsels in peril. Specifically ones with huge tits, ripped clothes, struggling against rope but tied up and dangling over a vat or something. Rope fraying rapidly while the villian gets his rocks off by watching her struggle and jerking off his purple veiny desperately throbbing knob that's right at the edge of exploding.

i've seen porn that caters to foot fetishes but i very rarely see one that caters to a leg fetish.

Like, just legs? Like the back and fronts and not the thighs? Cause thigh jobs exist. Either way, I believe there two hentai I remember watching that had leg fucking. Irl porn, nah man, apparently that's weird

Common Sense

T-Thats not a magnet fetish. Thats a "ripping someone organs out" fetish. Dafuq is wrong with you people?!

lol, it doesn't have to be that extreme, just an example

..ITS AN MRT!Ok i am sorry i am not judging the guy for the fetish. But an MRT is a magnetic resonance tomography.

There is a reason why we do not put people with screws, metal plates or other shit into those. Because it literally pulls them out. You can google that. They easily pull metal objects with 500 pounds of force. Now if i put something metallic in your lower area, shove you inside of an MRT and amp the thing up, it literally forces the thing upwards or downwards. The problem? You are between the magnet and the object. And since you are squishy human? That could easily mean you get your inner organs hurt or even ripped.

Fun time over. What shocks me about this: Thats common knowledge. They tell you that in every hospital show.

Its like saying: "Oh i like having sex under water..thats why i love getting waterboarded while doing it"

My god kids.

think you might be taking things a little too seriously here
but i'm sure you're not wrong

i recall the House episode where they try to MRI a guy with metal-compound tattoos

Never saw that one but can already tell it was not very pleasant.

Same here. Just want to see big clits that are not grotesquely long like a dick or them being an ACTUAL dick (Leave that to Futanari thank you). Just an inch or 2 is fine.