The Lodger: A Taboo Situation

Your Step-Mom calls you out of the blue, she is going through a tough time at the moment. She has just found out her Boyfriend has been cheating on her, she can't bare to be in her house anymore - all of the memories she holds there with a cheating idiot is awful. You feel bad for her, all of the things she has done for you over the years. You have just bought a new house and moved in with your Girlfriend, but despite that you feel like you owe it to her. Just a place to crash for a few days while she gets her head sorted. Step-Mom is super grateful, and promises not to get in the way too much...
From the moment she arrives she acts... different with you. Flirting with you, dressing provocatively, showering with the door open. You both know it's wrong, not only to cheat on your Girlfriend but with your own Step-Mother!? You begin to forget all about your Girlfriend, the only Woman that matters now is Step-Mommy. Any chance you get while your Girlfriends back is turned the two of you continue your secret, forbidden love affair.
But everything changes when your Girlfriend catches you in the act, all of your cum still dripping out of Step-Mommy onto your dick. It's time to make a choice, do you go with your head and live a nice, easy, conventional yet bland life with your Girlfriend. Or do you go with your heart? The Woman who adds risk, naughtiness, fire... Step-Mommy.