My stepmother called out from upstairs "Is everyone ready?"
"Yes." we replied back wearily, well my stepsister and I did, my father was very cheery.
You see the reason why my stepsister, Kaley, and I, weren't sounding so enthusiastic, was because, it was Halloween, and instead of being out with our friends, getting up to trick or treats, we were being forced to go to some dumb Halloween party, my stepmother had been invited too.
Now the reason we were being forced to go was, firstly, my stepmother wanted to impress her friends with how much of a loving caring family she had, and secondly, we were being punished for going to a house party with our friends, and getting pretty drunk, a few weeks earlier.
Anyway, in our costumes, my father was dressed like a gorilla with a bow tie for some reason, my stepsister was dressed like Harley Quinn, and I was dressed like Captain Jack Sparrow, we waited down by the front door for my stepmother to join us.
Then, triumphantly trumpeting her own appearance, my stepmother came strolling down the stairs, before she stopped half way, and posed excitedly for us.
"What do you think?" she then asked keenly.
We all then stared at her in amazement, as she was dressed like Elvira mistress of darkness from that 80's film.
Her long black hair was perfectly made up in that 80's style, her face was pale with the black eye liner and red lipstick, and she wore a very small black dress that barely held in her plump round breasts, and showed off her long slim legs that were covered in black stockings, and big high heels shoes.
"Woo!" I exclaimed in amazement, because she did look pretty hot.
"Ewe! Don't be a perv Steve!" said Kaley in disgust.
"Yes, I have to agree with Steve! You do look very nice!" my father said eagerly, before my stepmother grinned happily.
We then made our way outside to the car, and all the way to the party, I couldn't help but glance over my stepmother's shoulder from time to time, to get a look at her jiggling flesh pillows.
Anyway, once we arrived at the party, in this big expensive looking house, and met the hosts, and made a little small talk, Kaley and I were finally free to go and mingle, and eagerly we did.
After a few hours of drinking, chatting, and wandering around this big plush mansion, I eventually found my father again, leaning against a wall, talking to a pretty young woman dressed like Princess Leia from Star wars.
"Hey! Buddy!" he then said, rather drunkenly as I stepped up beside him, before adding "There you are! There you are! They you are! Have you met?"
He then glanced around in confusion, because the pretty young woman had just wandered off, and once he realised that, he looked back at me, and said "God! This costume is killing me! I'm getting no action what so ever!"
"Dad!" I replied in disbelief, because I couldn't believe he was trying to chat up other women.
"No. No. No. It's okay. It's okay!" he then said calmly, before adding "I've got a plan. Give me your outfit!"
"No!" I replied back, before trying to fight him off, as he started to take off my hat, and fake goatee.
"No. No. No. It's okay! You can have mine instead! You'll love it!" he then said, as he started to take off his gorilla outfit.
"Dad!" I cried again, as he started to get undressed, right in the middle of the party, with people watching.
"It's okay! Its okay!" he then muttered, before adding drunkenly "It's not weird, your my son!"
My father then continued to take off the costume, and knowing right then, how drunk he was, I realised there was no use in trying to get him to stop, so, reluctantly, I took off my costume, and swapped with him.
Once we were dressed again in each other's outfits, my father gave a jovial pirate laugh, before exclaiming excitedly "Watch out buxom ladies! I'm Captain Roger... the cabin boy!"
He then marched off in search of poor pretty women to terrorise, and I sighed unhappily, now stuck in his damp sweaty warm monkey costume.
Anyway, after another drink, I needed the toilet, so, after wandering around for a bit, I finally found a bathroom upstairs, and happily relieved myself.
Then, as I was leaving the bathroom, and about to head back down stairs to the party, a door to one of the bedrooms slowly creaked open, and my stepmother, in her hot little costume stared out at me.
"There you are, you naughty little ape! Did you think you could get away from me so easily?" she then said, sounding dramatically playful.
I stared back at her in confusion, before she then gestured with her finger to come closer to her, and said "Now get in here, so I can punish you!"
Again I stared back at her in confusion, and couldn't believe my own stepmother, was saying these things to me.
"Oh, you're trying to resist! Then resist these!" she then said, before she pulled down the front of her little black dress, and her big round pale tits fell out.
I stared in amazement at her lovely mature breasts that must have been D or Double D cups, and instantly knew, I had to suck on those big pink nipples.
"Come on honey! Let's not waste any more time!" my stepmother then said eagerly, before she stepped back into the dimly lit room.
It was then I realised, with this monkey mask on, she probably thought I was my father, and for a moment, I knew I should probably tell her.
"Come on!" she then said more firmly, seeing I hadn't moved to follow her yet, and it was then I decided, that perhaps, I shouldn't say anything, as it was my father's fault I was now in this situation, in the first place.
So, I quickly walked into the bedroom, closed the door behind me, and moved towards my hot naughty stepmother.
With her breasts still hanging out, I eagerly stepped up to them, placed my hairy gloved hands on them, and started to fondle her warm soft flesh.
"Oh yes! Yes, monkey man! Yes! Touch my boobs! Fondle them! Make love to them!" my stepmother cried excitedly.
So I did, eagerly caressing them, and squeezing them, and rubbing her firm pink nipples.
"Oh yes! Oh yes!" she then moaned in delight, before her slim hands began wandering over my hairy costumed body.
She excitedly, rubbed and caressed my gorilla outfit, until one of her hands slid down between my legs, and started to fondle my bulge.
I was already half hard, as I continued to play with my horny stepmother's big boobs, so, as soon as her hand started to fondle me through the costume, I quickly grew to a full erection.
Pretty soon, my cock was straining to be released, so, my Stepmother then began fiddling with something down in the crotch area, and to my surprise, she opened a small hidden pocket, before she slid her hand in, pulled down a zipper, and reached in further.