If He’s Not Fucking You, I Will, But Don’t Get a Divorce! (Chiho Rukawa’s Debut)

I’m her stepson, not her husband! Then why does she keep asking for my help whenever she is horny?! When she called me today, she was naked and masturbating with a dildo. I know that my dad is not fucking her as he should, and she makes me hard, but would this be wrong? All that I can think about is how worried I am about her leaving us. If filling her pussy when her husband doesn’t is what it takes, then I’ll do it. If she sucks my cock as desperately as I think she will, then we both win.