Dude thats my girlfriend

So most of the mask x readers I've seen and there's not many and there should be 😌 you are normally in a mental hospital and it doesn't make any sense so here's my Version:

You are Stanley's girlfriend already who he loves dearly and you find two green masks and become the masks the two greatest couple and villians but the one day Tina wasn't in for the club so you had to sing and you already had your mask on so let's say things got hetic

Oh and this will be the whole movie