I don't do anal nor find even watching the act enjoyable - however, I do know from working with many ladies on film that did do anal scenes that they often ready the lady with a light (modest) clear enema solution that includes (among other things) a healthy dose of lubrication. Anti-inflammatory medications, anti-virals and antibitoics are also frequently used in the solution along with a potent muscle relaxant. The anus/rectum is one of the fastest routes to administering many medications (a lot of medications have their greatest bio-availability when administered rectally, actually). For some time, diluted veterinary medications were commonly used as most were obtained over-the-counter in California or walked across the border from Mexico. So when you see ladies roiling their eyes to the back of their heads while taking it up the ass, sometimes, it is because they are flying high on horse tranquilizers.
So, in many ways Nash, her ass is "medicated for convenience".
Interestingly, for those scenes where such preparations are utilized and administered anally and the males do not wear a condom, many actors will use an invisible hand creme (barrier creme) on their penis that was patented for industrial use to prevent acid and other caustic or dangerous chemicals/metals from being absorbed cutaneously from casual contact in a manufacturing setting. This allows the male to lessen his risk of absorbing into his bloodstream that which has been plopped into the ass of the willing actress. There was a popular preparation (still manufactured today) called "
MAN-O" that was used for this purpose - however, they changed their formula and it is now removed (rendered ineffective) by soap and water . . . so it is not an effective barrier any longer - it was though the preferred creme at one time. Now, the cremes that are used are dissolved by specialized oils or chemicals that are not found within the enema preparation.
Enjoy your porn,
Kisses,
- Jackie