My stepdaughter took my dick on her lips

The other night my stepdaughter asked me to wake her up early for school. She had gotten a deep bruise on her bottom from soccer and took a painkiller then went to bed. In the morning I went in her room to get her up. Her mother had left for work and when I opened the door I saw she was sleeping naked in bed. She was hugging the blanket but her breasts were exposed and I could see her little pussy. I don’t know what came over me but I just stood there looking. She’s almost 17 and is quite beautiful. She has a sweet face but a killer body. I looked and looked but then shook her to wake up. She raised her head and said good morning. I said good morning and was leaving her room. She said Dad, would you rub my back? She didn’t cover herself and even though it was surreal I said sure. I had learned how to massage a back and align it and had taken care of her many times. Sometimes it’s very erotic and this time it was. She laid on her stomach and I pressed her back until she sighed with relief. Her ass was mostly uncovered and was perfect! She said if you don’t mind would you massage my butt? She told me she took two pills a few hours earlier and felt better but she still ached. I started to rub her ass and pulled the blankets off her. I really was doing deep tissue massage but I got into the sexual aspect of it. I loosened her muscles but put my fingers in her little pussy. She sighed and I put my fingers deep in her cunt. She liked it and told me to go faster then she came very intensely. She smiled and said now I’ll help you. She turned over and I saw how perfect she was. Beautiful breasts, sweet pussy, and the most wonderful mouth. She took my dick in her lips and licked me to a big ejaculation and gracefully spit out my sperm. She didn’t go to school but I know it was the vicodin so I let her sleep.