“What the fuck are you doing?!?”
I suddenly opened my eyes, my cock still down Izzy’s throat, but pausing from thrusting. The sudden yell had taken me by surprise. Standing there naked, with my bare ass to the door, I could feel a glaring presence. Slowly turning my neck, I glanced back over my shoulder, to see my friend had returned from her lectures, and stood at the bedroom door, witnessing her younger sister’s throat being fucked by her house guest. To my surprise, I could feel Izzy’s tongue swirling around in her mouth, teasing the head of cock whilst I was looking back at her sister. This turned me on beyond where I was already at, so without breaking eye contact, I turned myself, and Izzy, to the side, to give her sister a better view, and proceeded to thrust into Izzy’s throat while her sister watched in shock. I looked at my friend and smiled, “you know what to do!”