Fantasizing About My Step Daughter

To the point, not long ago I saw my barely legal step daughter sleeping naked. She had fallen asleep on the couch with a blanket on but despite having a top on, was naked from the waist down. What I saw was the most beautiful, perfectly shaved pussy, I have ever seen. The man in me was amazed but the gentleman in me made me cover her up and walk away. That being said since that night she is very flirty. Often twerking in shorty shorts and even offering barefoot back rubs.... yes I have a foot fetish. She is so sexy with small tits and a round ass not to mention that perfect pussy. Part of me wants to devour every inch but, I am a loyal man and know the harm it could do. I just cant get that vision out of my head. Ugh