PES-067 Brother attacked after finding sister masturbating

What a bargain! Includes two popular works! Sweet moaning sounds are coming from my sister's room. Out of curiosity, I peeked inside. "Let me try that thing I bought online the other day," she said, and then there was some rustling, and it turned out to be an electric massager!! "Ah... I'm cumming... I'm cumming!" I gulped down my saliva and burst into her room...! "Ew! That's disgusting!" Ignoring my sister's will, I felt aroused by her defenseless masturbation.