Patty is a researcher and she is testing the effects of a new body lotion that is also a sexual stimulant; Olivia answer to the ad and go to the office to get tested. Patty explain Olivia that she will be tied during the test.
Olivia is only wearing a bra and her underwear. In the beginning Patty start to caress Olivia sides and armpits, asking what does she feel; then she move to her breast while Olivia give her feedback. Clearly Patty is trying to sexually stimulate Olivia but she is also tickling her, because she love to tickle, and Olivia is doing her best to not show that she is ticklish so she smile and shiver but does not laugh. At this point Patty start to use the special lotion, telling Olivia that this will make her skin more sensitive, and proceed to put the lotion on Olivia's armpits, sides and breast.
Olivia immediately feel the difference.
All the time Patty has fun with tied Olivia- tickle and lick her sides and nipples, lick and tickle her feet, use vibrator to bring Olivia huge orgasm.