Trying on my sister's husband

Sofi Ryan has always been shy and she was worried that she was going to be a disappointment to her mom who was a known wild girl. But she confesses that even though she tries to get more experienced, there is only one guy she has her eyes on. But it isn't some guy from her class or school, its actually her step brother! She first saw him nude in the shower and couldn't help but play with herself to the thought of getting intimate with him. One day they were just studying and she decided to finally make a move on him!