Caught My Sister Fucking Her Tight Pussy

walked in on my sister in our bedroom playing with herself, she's 18 and i was 14, i didn't know what she was doing but she looked like she was having fun, she told me if i was a lesbian she would teach me about sex, all i had to do was agree to become her lesbian sex slave, she wrote a contract which i signed agreeing to be her sex slave and call here Mistress and she was to call me Bitch, and my education began, 10 years later i'm still her bitch and she has shared me with many of her friends