DISM-032 - My sister laughed at me for watching porn, then walked into the bathroom and asked, 'Want me to give you a hand?'

After catching her brother masturbating to porn, his sister goes from mocking him to being insatiably curious. Seeing him as a man for the first time, she can't resist the urge and follows him into the bathroom, offering to help him finish what he started. The situation quickly spirals out of control as they both give in to their forbidden desires.