Well i have a solution for both xD
You could pick a movie with a tie up scene in it and once the scene is over you could ask her if she would take a dare to be tied up and see if she could get out
then while she is tied up and gagged tell her how you really like her and how you would like to hang out with her alot more then see where it goes from there
and if you cant be bothered with the movie bit just ask her about doing a dare
