Susan was giving Mark a blow job when the doorbell rang. She was the only one of us wearing any clothes and she went to open the front door. Mark came and stood in front of Lucy and she took his penis in her mouth.
We heard muffled voices and then more clearly we heard Susan. “We’re in here. You can take you clothes off and put them in there then come through and join us.”
Susan’s head appeared briefly round the door. “It’s your grandparents and two other couples.”
I stopped fucking my sister.
“I meant to tell you.” Lucy said.
“Who is it?”
“Mum, dad, Mandy and her husband.”
“WHAT!”
“It’s alright mum’s had a conversion. I’ve had long chats with her and so has nana and Mandy.”
I was worried because my penis was still deep inside my sister and my mother was about to walk in.
“Hello son.”
I looked around and saw my mother standing behind me. It was the first time I had ever seen her naked. She had large white patches of skin where she had worn a costume on the beach.
“Don’t stop.” Lucy said.
I continued to fuck my sister while our mother watched. My dad walked in with an erection and stood beside her. The others followed him in.
“Your backside has not changed at all. I still recognise it after all these years.” Mum said.
Dad put his arm around mum. “Don’t stop son. It looks as though your sister wants you to carry on.”
I continued thrusting. “Why am I always the last one to know in this family.”
I pulled my penis out of my sister’s vagina and went over to give my mum a hug. My penis was erect and sticky and got squashed between us.
“Careful. You’re all sticky.” Mum said.
“I’d like you to meet Susan.” I held out my hand and Susan came over.
Susan kissed my mother on the cheek. “It’s a pleasure to meet you.” She then kissed my father and looking down at his erect penis greeted him with. “Hello big boy.” She shook my father’s penis as though it was a hand.
My grandfather pushed past us. “Can’t waste a good pussy.” He said and stepping up behind my sister put his penis into where mine had been moments earlier. My mother giggled.
Cupping my mother’s breasts I kissed her on the lips forcing them apart with my tongue. She did not know what to do, she had never been in a situation like this before. Taking her hand I put it on my penis. Her eyes opened wide. I guided her hand and my penis towards her pussy.
“What do we do now?” She asked looking around.
Dad and Susan were standing next to us. My granddad was fucking my sister. Mark, nana, Mandy and her husband were playing with each other on the other side of the room.
“We do what they’re all doing. We fuck.” I replied leading my mother to a mattress by the garden door. “Lay down.”
Dad and Susan followed us and lay down next to us. Dad got his penis inside Susan before I got mine inside my mother. Mum looked around the room. Everyone was fucking except us.
I put my penis against the hole that I had been born from and pushed. Mum moved her legs apart and pushed back against me. I was inside her. She hooked her legs around my body opening herself wide and allowing me to bury myself deep inside her.