Tickled gf well for the first time w/restraint (m/f)

I have been dated her for 2 weeks and she mentioned that she dislikes being tickled and her armpits are the worst. She said she laughs like a school girl when they are tickled. I have not tickled her much at all, have been waiting for the right opportunity.

Last night she asked to doggy. I mentioned that I have a sex furniture piece that makes doggy feel amazing. This link will show you it

https://www.liberator.com/black-label-hipster.html

I restrained her the same way as the pic. After sex, I tickled her under arms and she was laughing a lot. She begged me to stop right from the start and while it lasted. I kept tickling her boobs and underarms, thought about stopping after her kind of serious tone. But decided that I may not get many opportunities so I tickled her for about 45 seconds. When I finished I said we need to compromise so I can tickle you sometimes. She said as long as I am not restrained we are fine.

I also discovered that her sides were ticklish , her feet are not tho

Very interesting story. Thanks for sharing your experience here.