How odd? Why would a perfectly natural response to sex for 10-40% of women be illegal when so much other IMO much less natural stuff be okay?
It was made illegal in porn quite recently, like in the last few years, can't remember exactly when and irrc a few things were made illegal in uk porn at the same time, I remember reading a thread about it at the time and I think many people suggested it's because in a lot of porn films the women are told to piss so that it looks like squirting, starting sex with full bladder and/or having the man go at it so that piss comes out.
I can see why a bloke would find it a turn on as they probably think their partner is ejaculating. OP is consenting but like others have said, he could be doing damage to her.
Probably what OP describes happening to her, and as it's harmful for the women, I can't remember if the discussion said that's why it's was made illegal in uk porn but lots of posters felt it was a good change as its protects the women in porn from being reassure and expected to do acts that can cause permanent harm to them.
I guess there's also the argument that what happens in porn influences what happens in the real world bedrooms, like the increase in expectation of no public hair on women, and the increasing pressure on girls to consent to anal sex and the girls who have been injured by it, that by not showing it porn it could prevent or reduce men trying to harm their partners to get them to what they've been led to believe is squirting? I'm not sure myself as the majority of porn that's consumed is on free sites and often not made in uk and shows other harmful acts to women.
Ill try find links if anyone's interested?
To answer the OP, no, it's not happened to me and dh hasn't expressed any wish to make me wet myself during sex, I just asked him and he said no way, he wouldn't consent to anything that would cause physical damage to me.