if you watched it carefuly he strugled with it in whole video. he had hard time to "put it in" and it's obvious in the end, the blackmailers yelled at her to "help him".
Watching closely means you'll notice "Grandpa" smiles at the camera between 0:32 and 0:35.
This is almost certainly a sex worker with an elderly man as the client.
Struggling to get it in?
Well, it’s an old man with a camera in his face, surrounded by an audience, likely intoxicated.
Even a young man would have a hard time in the same exact scenario.
