My stepsister rides my cock after I walked in on her naked in my bedroom

My stepsister sneaked into the bedroom naked and laid on my bed while I was in the shower. After I got out of the shower, I was surprised to see my stepsister naked on my bed. When I approached her to ask her what she wanted, she grabbed my cock and gave me a blowjob. My stepsister also shows off her dick-riding skills.