My question is, if there is such a shortage of female to male videos, why not make some yourself. It's easier than you think. Look on Craigslist under 'Gigs' in the job section. There you'll usually find ads for 'models' 'photo shoots' and 'erotic films', fetish etc. Put out a free ad asking for talent to shoot a fetish film.
There are many young, and older, women who would love to be in a porn film. You'll have to pay them of course and you probably won't be dealing with professionals which is much cheaper. Standard per day or 'scene' scale in the porno industry was about $1500 a day per actor five years ago. I'm sure it's higher now. You can probably get some decent, home spun, girl next door types to work for $200 or less per day. Remember a day, in porn is called a scene and is generally 2-4 hours of work NOT 8. If you actually found some females into enemas they might work for free, I have.
You don't even need a lot of expensive equipment. Even modern cell phone cameras are capable of shooting 4k hdmi which is broadcast or above quality. A few lights, which you can rent or use what you have. Make a decent script and especially a good shooting script where each shot is planned out. Do a dry and wet dress rehearsal to plan angles, shots, and work out logistics. That's what separates the lousy amateur films from the near pro ones.
A decent video editing program, such as Adobe Premiere, a few hours in post production and ta dah, you've got a movie. Keep it for your own enjoyment or see if any of the fetish companies are interested in the rights.