Every full moon you have to stay at your friends house as per your step mom and dads orders. But this time, your friend cancels and you have to come home. You arrive home to find your step mum on the couch, and she is shocked to see you here! She looks distressed and tells you that you need to stay in a hotel, your father wont be home tonight and she wont be able to control herself once the full moon hits. She rings up a hotel but finds they are all booked, before she has chance to think of another plan, she feels the full moon taking affect, she feels hotter, her breasts and pussy are tingling, she feels insatiable and hungry, she orders you to go before its too late but you cant help but sit and stare and watch her rub herself. She says she is horny and needs cock! She rips off leggings revealing her unshaven bush, and rubs her pussy violently, but she says its no good - she needs cock - your cock! She tells you she will give you the best BJ of your life and rips off her top, she sucks your cock and tells you to cum in her mouth. She is desperate for cum! Hungry for it! You shoot your load in her mouth and you watch as it drools out her mouth. But she isnt finished with you yet. She wants more. And for some reason, your cock is still hard and able to go again. She rides you cowgirl and tells you she wants you to cum in her pussy and impregnate her Anything for cum! She turns round and fucks you reverse cowgirl bouncing her ass up and down your cock! She encourages you to cum inside of her and you do! But she isnt finished with you yet, she wants more! By this time your starting to feel tired but your cock is still hard and ready, you fuck her doggy and she is now ordering you to cum inside her taking on her authoritative mommy role. You shoot in her again and watch as your load dribbles out of her pussy, she fingers herself and tells you she wants MORE! You fuck her missionary and you cum pretty instantly just to get it over with as your pretty worn out from all the fucking by now. She fingers fucks her wet and gushy pussy as your load runs out, after it is "empty" she demands more but your finished and run out as fast as you can to hide for the rest of the duration of the full moon. This is a step-mom fantasy but I do refer to myself as mommy / mum sometimes.