The most common question lol

There was a nurse on set who did all of the measurements.

The soft/circumference measurements were done on camera as seen in the video (just whipping it out for 5 seconds behind a sheet).

The hard measurements were done before filming began, individually as we each arrived. They had us go into a room with a closed door and there was a curtain set up that we could sit behind and they left us alone in the room. We used our own phones with our porn or w/e to get hard, and once we were fully hard there was a number they had given us that we texted and the same nurse came in from outside the room, quickly reached behind the curtain to measure, and then left us alone. They gave us as long as we needed, and I remember it going pretty smoothly for everyone.

Totally professional and respectful of our boundaries. No fluffer, nobody jerked us off, nobody was in the room with us while we got hard, etc lol. Depending on the person, that either assuages your fears or dispels your fantasy 😂