Sissy School is the perfect place for you! Whether you are a submissive sissy, a slutty sissy, or whether you just enjoy dressing up and feeling girly, the Mistresses of Sissy School will bring out the sissy in you, and give you a safe place to explore your feminine side. So what is a sissy? In meeting and getting to know thousands of sissies over the past decade, we have come to learn that each sissy defines herself in her own unique way. But there are some things that lots of sissies have in common.