alexnash Scenario sounds awesome and Ryan as an extra is 🔥
Regarding the masturbation, on one hand I think it would be cool to see some solo Ryan action to make the scene more interesting. On the other hand I think the sneaky sex would work best if she catches you and gets upset. Maybe you could manage both? She eventually catches you and has an argument with Melody while you're still fucking her. Melody is a rebellious daughter and tells her to screw off. Ryan gets angry and leaves, but then we get the solo scene of her masturbating to you. Personally I think stepsister is better than stepdaughter for the story — if you're the stepdad, she'd be angry at you, not Melody, and she definitely wouldn't leave lol.
If compliance is an issue you could maybe just put the Ryan scene before she catches you? That way she's not getting off to you specifically. Or make Melody adopted? Not sure if that's enough to dodge problems though lol
One more idea: maybe while you're sneaking around initially Melody can ride you in sideways cowgirl while fully clothed, her panties pulled to the side or removed under her skirt. When Ryan comes around Melody pulls her skirt down and has a conversation with her, pretending she's just sitting on your lap despite the fact that you're penetrating her below the skirt. Might be hard to make that look natural though lol
Good luck with the shoot tomorrow! I'm sure it'll turn out great 🎥🎬💪
