I never tried to do the riding pose with Monica but from what i remember it was you would get pushed around by their animations and a simple lock player would fix it but that did not exist sadly.
I had to block the player in place with collision boxes and hope for the best in the Night Out story.

I'm looking forward to seeing what things have been added.

Cool, I like this! Is it another chapter in XSP or a completely new game? I mean, doesn't really matter as long as it's similar (hue hue) but I'm so happy right now - a sign of life! Best news!!