I have an older sister who is a beauty and very meddlesome. Even though I'm already in high school, she still treats me like a child. She even barges in while I'm taking a bath and, seeing my foreskin penis, says, 'You need to wash it properly! Girls won't like you otherwise!' Then she tries to pull back the foreskin and gently washes it thoroughly. Being touched like this makes my penis harden into an adult erection! Just as I think 'this is bad,' my aroused sister...
