tove danovich who says she was assaulted as a college student. dr.l stern, consent advocate whose improv troupe travels the country teaching consent through scenarios like this. >> according to sources you are accused of raping a fellow student amy. >> i admit i had sex with this girl but i did not rape her. >> reporter: these actor educators perform skits like this hundreds of times a year. >> amy alleges she was raped in your room at a party. she said you forced herself on her and she struggled but you pinned her arms down and had sex with her even after she said stop. >> i want to start by thanking the people of penn state. obviously penn state considers the idea of consent on campus an important priority, which is why we're here today. let's start with this idea that it's easy as a concept to bring up consent, but in reality, that's a very difficult bar. >> it's not clear to anyone how many yes's are enough, how many actions are enough to constitute consent. >> the fact that we come at it from this perspective where it is yes or no makes it diffi

tova danovich says her nightmare began after a late night out when she decided to crash at a friend's apartment, sharing a futon with a guy she used to date. >> we had all met up. we decided to go out for the evening. at some point later in the evening i woke up and felt him having sex with me. >> reporter: the then 19-year-old, a freshman attending college in new york city, says she was frozen in shock. staying silent through the ordeal while another friend slept just a few feet away. >> you're just paralyzed by not knowing how to react to what's going on. i didn't know what to do about it. i didn't really want to make a scene. i just pretended to be asleep. >> reporter: tova's experience points to the often-complicated react during a sexual assault. >> if anyone had ever asked me, if someone has sex with you and you don't want them to have sex with you, will you stop them from doing that? the answer would have 110% been, yes. then when the situation actually arose, that was not my response to it. >> people talk about fight or flight without realizing that the third piece is freeze.