My sister is kind, serious, and innocent, even to me, a shut-in. However, she is a slut who can't say no to any advances! When my parents were away, she would bring in men and have sex with them! Whenever my parents are away on vacation, she brings in multiple men and engages in orgies! I was secretly taking spy photos of my sister having sex, but finally I couldn't stand it any longer and told her I wanted to have sex with her! She accepted me with mixed feelings! She is now my own personal slut. This is a record of that.