My Stepmom Fucks My Brains Out with My Old Man Just Upstairs

My stepmother Autumn comes downstairs and finds me in the basement. Autumn has been my stepmother for 11 years and we are in a sexual relationship, which truth be told doesn't bother me at all. I like her frumpy body and hanging tits. She chains smokes Virginia Slims 120s which is probably where I got my smoking fetish. I guess the only problem is she's getting more and more daring. When she came downstairs for sex today, my old man was just up in the garage working on one of his projects. I could hear him right above us. That didn't seem to bother her, she took her clothes off in front of me and when she was naked, she said lets go play. We went into my room and fucked like rabbits. I pounded her as long as I could and her smoking like a chimney the whole time but when we got into a doggie position, I just couldn't hold back any longer. I nutted all over her plump ass. I was done but stepmom wasn't. She smoked and masturbated all over my bed giving me a show I won't soon forget.