How about like a normal massage video but with a super ticklish client. And NOT turning it into an "I'm intentionally tickling you" session, because there are already plenty of those out there. What would truly be unique is a video where it's a normal, intense massage with lots of cream/oil where the normal massage moves just happen to be extremely ticklish for the recipient. AND AGAIN THE MASSAGE THERAPIST DOESN'T INTENTIONALLY TURN IT INTO A TICKLE SESSION. They just keep doing the normal massage, and maybe even intensify it a bit, which of course only tickles more. Really digging into her armpits as she has her arms over her head, which she has to keep there because she's a volleyball player who needs the massage work done on her rotator cuffs or whatever, and the therapist does NOT change the moves at all just because the client is laughing her head off. Would be great to SEE her laughing too of course, not just hear it. Camera angles where you can see everything are key. Really squeezing her sides and abs and working those stomach muscles, as she tenses them up and giggles. Really gliding all over her feet and soles and between her toes while she's laughing like crazy, but again, she needs this work done on the muscles of her feet.
They key, again, is to NOT turn it into a tickle video. NOT a "Oh, you're ticklish? Well, we're just going have to have some fun here." NO. We already have plenty of those.
When the client becomes ticklish, the therapist needs to pretty much be oblivious to the laughter, and she just keeps going, doing his or her job. A pure, accidental tickling session. Could do another one where it's an intense, long-form foot scrub. And another where it's some form of physical therapy procedure. And another where it's some dermatology treatment on the feet or armpits, say.
The possibilities are endless!