"ooh I'd like that" giggled Kate. She lay back on the bed and spread her legs wide for her sister. "No, sit on my face!" Without another... word Kate got down on her knees, one leg on either side of Brianna's shoulders and sat back. "ammhh" she whimpered when Bri's tongue darted up at her swollen labia. Once she had relaxed again she leaned back again and moaned lightly as Bri spread her butt cheeks with her hands. "Oh Bri" Kate moaned. Brianna took that as a green. She heard me walk in and pulled her mouth off his cock stroking it while she talked to me. She told me to come over there and keep him hard while she made lunch. I was like what no way she smacked my face and sat me down next to him. She put my hand on his cock and said to keep him hard so I sat there stroking his cock and watched my aunt cover bread with mayonnaise. She turned around and said you need to put more effort into it. Then she said use your mouth walked over and pushed my mouth over. We found a quiet corner in a back room and lay down on the couch and cuddled up together. We both must have dozed off, but suddenly I was wide awake, the room was now in darkness save for the small amount of light coming in from the doorway. I checked my watch and I was surprised to discover it was after two am. I looked around to see what had woken me, across the room a vague shaped caught my attention. Then the door opened letting in a little more light as someone entered; the vague shapes. The head was shiny and deep red in colour. I lay on the sofa, thought about the following Friday and stroked my cock. My other hand cupped my balls and squeezed them gently. My hand stroked my cock faster, gripped it harder, and it wasn't long before I felt my balls swelling up, I squeezed my balls, pumped my cock and a giant arcs of cum shot from my cock all over me, my cock kept pumping for ages, the arcs got shorter and shorter until cum was just dribbling from my cock. I relaxed,.