It's just one of 10 items on a list of sex acts and practices that UK-based porn producers are no longer allowed to include in their films:

Pornography produced in the UK was quietly censored today through an amendment to the 2003 Communications Act, and the measures appear to take aim at female pleasure. The Audiovisual Media Services Regulations 2014 requires that video-on-demand (VoD) online porn now adhere to the same guidelines laid out for DVD sex shop-type porn by the British Board of Film Censors (BBFC). Seemingly arbitrarily deciding what is nice sex and what is not nice sex, the board has banned the following acts from being depicted by British pornography producers:

Spanking
Caning
Aggressive whipping
Penetration by any object "associated with violence"
Physical or verbal abuse (regardless of if consensual)
Urolagnia (known as "water sports")
Female ejaculation
Strangulation
Facesitting
Fisting

A broad interpretation of the fourth item on the banned list—penetration by any object associated with violence—would lead to the banning of PIV intercourse in porn. (Is there an object more associated with violence than the penis?) And how on earth did female ejaculation get on the list? Caning, spanking, whipping, strangulation: Most of the banned acts involve depictions of consensual erotic "violence." But female ejaculation? WTF? And the ban won't prevent Brits from jerking off to kinky porn:

While the measures won't stop people from watching whatever genre of porn they desire, as video shot abroad can still be viewed, they do impose severe restrictions on content created in the UK, and appear to make no distinction between consensual and non-consensual practices between adults.