Just... no. Merely putting an image into a game more or less as-is does not mean that you have "transformed" it and that the fair use exception applies. If that's all it took, it would pretty much make copyright for images void. (Also, by the same logic you would be free to rip any assets, music, etc. without restriction as long as you put them together into a new game. Obviously that's not how things work.) The link posted by
169134 includes a short discussion of how courts understand "transformative": it's a much higher bar.
In actuality, legal practice around copyrighted images is crazy strict. For example, movies and TV shows usually can't show posters on the wall in the background of a shot without clearing them first, and will sometimes decorate sets with blank green posters to CGI in later, depending on what they're able to license. You even see this in some porn, where they blur out art on the wall. (I suspect that if someone got sued over something like this but fought the case to the Supreme Court they might win, but it's not a sure thing.)
All the porn games using "found photos" and videos are operating way outside of copyright law.
Now, in this particular case, the graphics
may actually be sufficiently modified from the original sources, though I wouldn't bet on it. They're clearly still derivative works, and the fact that they use the likeness of a real person, taken from commercial photos/videos without license or permission, wouldn't help.