Mum was on her back, her tits wobbling, as Stacey's tongue plunged back and forth into her cunt. Mum's groans got louder.

My trance was interrupted by Laura's elbow, digging my ribs. She gestured back to the hallway, leading me forcibly away.

We could still hear mum's groans as we walked away. Laura led me by the hand to the living room. She turned off the lights, put the wine glasses in the kitchen, then led me to my bedroom.

Inside, she sat me down on my bed. I was still in shock. Then Laura began to undress. I stirred back to life and watched as she shed her underwear....