No, the initial comment was about doing it for real. Like, there are videos with hige dildos dilating real asses. But yeah, the first point is their preparation off scene should be serious, moisturizing rectum, massaging and lubing.Read my image again. This applies to all of the sex scenes.
And second thing... Man, idk how long can you bear this treatment. I heard real p-stars are often leaving in a few months of normal dicks in the ass. Professionals are having naturally thicker anal walls and always take time to prepare and take necessary breaks to heal.
Also, did anybody spot that Hiro's cock isn't actually 3 inches on arts, I smell lies.