Yes, but that's standard operating procedure for any model.....or SHOULD be.
I mean, why hire a girl, pay her whatever amount the producer has to, shoot ONE clip with her, and send her on her way? Then someone asks..."Hey, why not do a pantyhose tickling clip?" Then he has to go find her again, pay her again, set up another day, tickle her in pantyhose......
Then someone asks "Hey, why not tickler her in a cowgirl outfit, in pantyhose....." Then he has to get her AGAIN.....etc. etc.
It makes smart business sense to hire a girl, shoot many different videos with her, bare foot, pantyhose, hogtied, sitting on chair, on bed, in costumes.... then you have a good stock of clips to spread out, and thus always have something new to offer the customer.
And there's also the fact that, (he'll have to verify this,) but producers and directors grow relationships with people they know, and who are either popular, or reliable, or both, and want to continue using them, and not have the difficulty of hiring someone new for EVERY video. (That's why director's like Tim Burton will hire Johnny Depp for almost every movie he makes....why risk hiring a new star, having the potential of getting in fights with him every damn day, when you get along great with Johnny Depp and know he'll deliver?)
Now, when you get huge, like FM Concepts, you will gather a huge collection of girls to tickle....but even THEY use those girls for multiple shoots, and bring back old ones who are willing and eager to return.
And THEN there's the factor of...what if you get one HELL of a ticklee, you know that you will make money with her every time, so why not use her often? He just told us that Samantha is coming back soon....now, Samantha is easily one of the top 5 models to be tickled, EVER, so his store will get more attention now that we know a superstar is returning. Haley was hot. If he announces she will return, maybe even advertises he will shoot several pantyhose shoots this time... we pantyhose lovers will be checking his site daily, thus giving him much attention, and business. He will be the clip store with hype, like the summer movies!
And finally....it IS hot when a girl keeps returning, because you kind of think and hope....does she actually ENJOY being tickled? Is this more for her own enjoyment, rather than simply doing a gig for a paycheck?