When I went to return the manga I borrowed, my stepsister was in the middle of masturbating with a VR headset on! She didn't even notice I was there, so engrossed was she in playing with herself! Even when I sneakily touched her breasts and pussy, she didn't realize because she was so into the VR experience! Feeling emboldened, I decided to take advantage of the situation and insert my already hard cock into her without her noticing! The intense pleasure was so overwhelming that I ended up cumming inside her! As a result, her VR headset slipped off due to my vigorous thrusting...
