Sorry if this is a dumb question but im considering buying the full game and I feel im not doing something right

Ok in the Wet Dreams demo I can get all the way through to the last question then there's nothing else to ask.
I try to take her blouse off or click the buttons on it and she asks me to stop. She only asks about 3 times then she leaves.
Cant I take her shirt of blouse off?? (It said in the walkthrough to click on the buttons on her blouse to take them off)
Maybe im suppose to click then move my mouse?? She only gives you a few chances then she leaves..

Edit: Actually nvm I didn look at the bottom part of the teachers paper after questions

Additionally, the newer version (3.5) of the game is leaps and bounds better. The demo gives you a good idea of what the game is about, but when you buy and download 3.5 it is much more fulfilling.

You can take her blouse off, but later