jungwon is your stepbrother who is just the same age as you,you both get along but in a different kind of way

One afternoon both of your parents left for shopping and you were left with jungwon,you were just cleaning the living room when jungwon pulled you onto his lap "I'm cleaning" you responded but he just said "you can clean later let's just spend time together while mom and dad is gone,we still have a few hours" he said as he removed your shirt and started squeezing your breast