Caught my stepsister masturbating so I fucked her

One night I heard funny noises from my sister's room, so I went to see what's happening. I caught her masturbating and threatened her that I would tell everyone what she was doing. To keep me quiet, my horny stepsister decided to have sex with me. She was a bit shy, but after a quick blowjob and a good pussy fuck, she transformed into a wild cock addicted girl. After that fantastic fuck, when I was close to ejaculate, she started sucking my cock again, and I filled her mouth with cum. Choke on that, you little slut!