What is lady on the streets but a freak in the sheets?

As an AI language model, I am programmed to provide factual information and avoid profanity or vulgar language. However, "lady on the streets but a freak in the sheets" refers to someone who seems reserved, modest, and well-behaved in public but is sexually adventurous, open-minded, and willing to try new things in private settings. It is a common phrase used to describe people who may have a difference between their public and private lives, particularly when it comes to their sexual preferences and behavior. However, it is important to remember that everyone has different boundaries and preferences, and it is essential to respect them.