Wow! So many questions resulting from this picture... lol
Obviously somebody must have decided on the tickling theme. Was it the photographer? Or perhaps Sara herself? Going by the reference she made to 'tickly' make-up brushes, perhaps the delicious Sara has a secret fetish to be tied and tickled - perhaps with feathers, and seized the chance. Perhaps it was her who encouraged the photographer to produce a photo where she was helpless and being tickled.. perhaps that's a big fantasy for her... being tied whilst being tickled with feathers...
Love to hear what folks think.