WOULD YOU SIGN A SEX CONTRACT !

We constantly hear of people signing pre-nups to protect their material assets within a relationship. But what would you do if your other half asked you to sign a contract committing you to sex twice a week, unless you were ill or away from home? Psychologists argue that regular sex is important to a long-lasting and healthy relationship. But would a sex contract make it more of a duty than a pleasure?
What do you think?
Come and give your opinion on what you think !