Manual thrusting was already janky before the outward pressure was added. Any adult vertebrate with the pelvic strength to stand fucking upright should not have to struggle to keep it inserted.
The only time I've ever been forcibly shoved out is during a squirting orgasm. I can't be sure if that's common to all women, but the videos of squirting I've seen always show the man pulling out for the gush.
I can't be certain whether it was involuntary or they pulled out for the sake of the money shot, but I do know that most of the time I've occupied orifices, they weren't rejecting me like they do this version!
