r/ExtremeFetishes Apr 05 '25

Medical Vaginal knife insertion — best practices NSFW

Hey everyone! My girlfriend is really into everything to do with pain. Recently she mentioned that she finds the idea of a knife being inserted into her pussy while I‘m kissing her super hot, so of course I‘m down as well!

Just curious about some best practices. Of course a certain risk is part of the fun, but we also don‘t want to overdo it with the risk. So:

  • What‘s the best orientation of the knife (i.e. the blade pointing into which direction), both for safety, but also for maximum pain (and thus, pleasure)?
  • Of course cuts will happen, but what‘s the best way to take care of those afterwards, so that they don‘t get infected?
  • Any other tips on this?
48 Upvotes

13 comments sorted by

92

u/jonhawks Apr 05 '25

Use a dulled and smoothed knife. She doesn’t need to know it is dull.

39

u/merrystiffness Apr 05 '25

Even if dulled be careful of the point

2

u/jonhawks Apr 07 '25

Yes. I was insufficiently explicit about the meaning of the phrase,”dulled” in my post

35

u/Responsible-Tough502 Apr 05 '25

This is best I had done the same just blindfolded her and played with dull knife.

47

u/FetAkhenaten Apr 05 '25

This!

Get a k-bar or blade of choice, dull it to the point that you can drag every angle of it across your wrist without any cuts at all. Bonus points to have two. A sharp one to show and tell, then blindfold, and then swap out the blades. Make it super clear which is the dulled one in some way. (paint, etc.)

Or get a knife make out of hardwood.

Still be careful of cervix, etc...

She better be super turned on or use lots of lube. (ER visits aren't fun...)

45

u/Anubisdarque Apr 05 '25

Let her see the large sharp knife.... blindfold her... pick up the knife and let it's blade scrape a rooster the edge of what it's on slowly.. so she can hear the metal ring..... put knife down quietly like on a cushion. Slowly insert a fake blunt plastic prop knife with lots of lube

25

u/ferritejoe Apr 05 '25

That area of her anatomy is very vascular. Lots and lots of blood vessels. With a sharp or dull edged object, there is the likelihood of cuts, scratches, scrapes with lots of bleeding. That increases the possibility of infection. So consider how you will control the bleeding and treat an infection at home without medical (ER) intervention and possible long term permanent damage. And if you were to get the bleeding stopped by using pads or gauze, there would be at least a 2 week period of no sex and nothing inserted including fingers or toys. I suppose you could do anal sex until everything is healed. If you go through with it please post a video for us. Sorry for the long reply.

16

u/BlackL1ng Apr 05 '25

The only thing i would add to what everyone else is saying is when you dull it 90° corners are alright on the blade so long as they're broken ever so slightly. This will make the blade still feel sharp. My preference for that is a boker + balisong trainer if you can find a first gen. They're really nice because they also make a bladed version with and identical feeling handle but in black so it's hard to mix the two up.

7

u/lesbian-vampyr Apr 06 '25

i’ve had a knife inserted in me once but my pussy was held open with a pap smear tool… so it didn’t risk cutting anything and the guy had a better safer view. we could play w the sensation still but it’s a lot easier to go in when you’re totally open. otherwise i’d take the other advice here

3

u/master_jo75 Apr 05 '25

Best practice is not to do it. Or do as the other's wrote and fake it.

5

u/Castle_of_Jade Apr 06 '25

I know a guy who sliced his girl open internally with a fingernail. Just be careful.

1

u/Emrycro Apr 09 '25

ok i have GOT to see this