My stepsister lets me fuck her after I caught her trying to fit a dildo in her pussy

I caught my little stepsister trying to fit a huge dildo deep inside her pussy. My stepsister did not want to tell our parents that I caught her trying to fuck her pussy with a dildo. So she took out my cock and gave me a blowjob. I then went on to bend my stepsister over and fuck her pussy from behind.