[M4F] Girlfriend finds out her cute bf is secretly getting fucked by his hot Dad

You knew we were always close after mom died and it was just the two of us- the relationship was pretty wholesome and sweet, even. But you never would have imagined what was happening behind closed doors. Your perfect boyfriend, the one you thought you were going to marry, is involved in an incestuous gay affair with his own father! Maybe you catch us jacking off together, see him stealing kisses or touching me in ways that make you look twice, or full on catch us in the act. Whatever the case, some part of you resists the urge to do what you know is right, to walk out, not say another word, and go tell someone- and it starts to become horrifyingly clear why that is... you like it. You love your boyfriend of course, but you always thought his Dad had a little something going on too, not that you'd ever tell anyone that. Seeing the two of us together stirs feelings inside you that you never knew could be there, we're already too far gone down this rabbit hole, clearly, and now it looks like we're going to drag you down into it with us

Hello peoples :) So, for some reason I've always really loved doing m/m RP with specifically women online. I added the gf angle here because I think it makes the dynamic more fun, but if you're interested in any kind of alternative prompt with this theme, I'm more than happy to hear it! I imagined we could share the dad, or you could play him, I always like that

I'm down for whatever you want to do with this, slow and long term, something more fast and loose, or even just chatting about the kink if you're curious and/or into it too and enjoying a little mutual appreciation of it.