Vita’s feet tickling and biting when she read the book

Vita is on the bench with her legs tied to the back of the chair. She is reading a book and I’m tickling her feet at the same time. She tries not to get distracted by the tickling. I use my hands and then a silicone brush to tickle her more intensely. I also bite her feet for a while.
When Vita raises her hand I tickle her armpit which is sweaty a bit.

Then I’m at the bottom and tickle her belly and sides.
Towards the end, Vita becomes very sensitive and laughs out loud and squeals. Enjoy!