Neck tickling competition

The two beautiful girls are in a funny mood.
They put on their best swimsuits and Beatrix makes Princess Nikki sit down on a chair
and ties her hands.
Then she starts to tickle her neck . The rule is that she has to try to hold her
laugh back as much as she can! They go to the bed and continue the whole
thing there.. They take turns. Lets see who the winner will be!