Bear with me here, this is a strange one.
Is it possible for someone to clench their vagina or anus during intercourse with sufficient force to either seriously injure or crush their partner’s penis? Has there been any documentation of this?
Need answer fast?
If any woman claims this ability, I volunteer to let her try on me.
All in the name of science of course.
Vaginismus occasionally occurs during copulation. The results are not pleasant for either partner I understand.
“If we had done it my way, at least we could have walked to the hospital instead of being on a gurney”.
And watch out for those teeth!
Anecdote:
I broke a plastic speculum during a procedure with the force I bore down. My gyn had never seen the like. Had to switch to an old fashioned metal nightmare.
Why were you “bearing down” during an examination. I admit I’m a guy, so I don’t know what goes on during these sessions, but that kinda sounds like breaking the doctor’s finger during a prostate exam. Did he challenge you to try and do something to it?
Involuntary reflex from what was going on, not on purpose. he was truing to get a larger sample. When you mess with the cervix it can trigger cramps, I just clenched.
Umm. I “mess with” a cervix all the time, but they didn’t teach us this in Husband School. I will bring it up with Pepper Mill tonight, where it ought to trigger an interesting discussion.
Try as I might, I haven’t yet been successful. Will return and report if I ever manage to break a dick with my mighty vag.
I do have a “no anal” policy that includes the statement, “If anything goes into my butt, I reserve the right to snap it the fuck off. Try it at your own risk.” 
So far, no one has challenged this policy.
Been watching Eddie Murphy’s “Delirious,” have we?
Seems like the most likely injury scenario would be if you pop out and then fail to reinsert, resulting in penile fracture.
As to “RRRIP”, I suppose the odds are greater if the guy has piercings.
I don’t presume to know about your sex life but from my experience most cervical encounters are uncomfortable at best. I think the cervix pulls up during arousal so there’s no painful penis bumping.
I’m picturing CalMeacham with his spouse and 2.4 kids sitting around the supper table, having this discussion.
Not sure that this is what the right wing means as ‘family togetherness’!
You would be amazed and possibly appalled at what passes for conversation around our extended table (immediate family plus our daughter’s friends).
For the record, Pepper Mill wasn’t at all surprised. Millical asked what a “speculum” was. Huh. I woulda thought she knew that.
Under “see also” on the vaginismus article there’s a link to an article on penis captivus, which provides probably the best answer the OP is going to get.
According to Wiki, while there have been rumors and unverified claims of men having their penises trapped in the clenched vaginas of their sexual partners, there’s virtually no medical documentation of this. It looks like there have been only two instances of doctors publishing articles stating that this had happened to their own patients, and these were both in the 19th century. Additionally, both of these doctors lived in the same country and published within two years of each other. Given the lack of credible, verifiable accounts of penis capitivus in the 140 years since then, I’m inclined to believe these two 19th century doctors were lying or exaggerating.
Or, given the proximity both geographically and chronologically, both reports involved the same very unique woman.
Several years ago, sex advice columnist Dan Savage held a contest, encouraging readers to submit their embarrassing masturbation story. One woman told of being a teenager experimenting with self-fisting when she suddenly discovered that she could not withdraw her hand from her vagina. IIRC her grandmother was babysitting her at the time and was the only one she could turn to for help. Her grandma wrapped her in a blanket and brought her, with her hand still stuck in her vagina, to the ER where doctors were able to extract it.
Ah, here’s the original submission. Grandma wasn’t babysitting - the teen was visiting her grandparents.
Not exactly penis captivus, but a vagina definitely can capture things if they’re large enough and shaped correctly.
I have seen ladies pop open beer bottles and the like with their vaginas. Really. A mamasan once drew me a diagram on a napkin showing how a bottle opener is secreted up there. That’s never seemed like much of an advertisement for the lasses though.