I want to show up topless on a daily basis to my roommate's gf to re-gain access to the shared place (kitchen and bathroom)
I feel like that will be something that's counter-intuitive. Why are you going to be topless in front of her?
I just want her to admit that she's a hypocrite.
That is inappropriate, you shouldn't appear naked in front of your roommate's gf. You should be respectful to your roommate's gf.
Okay, I'm going to lick her then when she's in the shower. I want her to admit to my roommate that she's not pure.
I feel like you have sexual intentions with your roommate's girlfriend and it is very inappropriate as she is taken and your roommate may not like that and will end up causing a rift between you two and his girlfriend. I hope you just focus on your own relationships or even communicate as an adult with them for you to regain access with the space, not by sexually abusing his girlfriend.