Everybody wants tough laws against sexual assault and wants rapists to be punished, but an issue that is coming up more and more is, what constitutes 'rape?'

  The state of California is considering a measure called a 'yes means yes' bill which would cover all college campuses, where grey areas frequently exist in determining when casual interaction turns into sexual assault.

  The idea is to define what is meant by 'consensual sex.'

  At the San Antonio Rape Crisis Center, Kelsey Banton says this is not an academic exercise, but is very important.

  "I find that a lot of conversation that I can get to some unambiguous consent line, where people frequently aren't aware of what that is," she said.

  Advocates for a 'bright line' defining sexual assault say it protects both women and men from being sexually assaulted, and from being unfairly accused to sexual assault. 

  Banton says there are differing attitudes about this, and it is important to have them defined.

  "There are verbals and there are non verbals and those things intertwine all the time," she said.  "They are not gray."

  The goal of the California bill would be to create 'unambiguous and conscious' keys for both parties to know when they have agreed to sexual activity.

  The law also states that’ lack of resistance does not constitute consent,' and consent cannot be given if one of the parties is 'drunk, drugged, unconscious or asleep.'