I then sat on the floor of my bedroom looking over my magazines when a strange sensation took hold. I looked down to my panties and there was a rather...large bulge that had not been there before. Standing up I slipped my panties down along my nylon covered legs and saw for the first time a man's cock looking back at me. Unsure of what to do I ran my fingers across it gently. A tingling sensation ran up my spine. Without thinking I let out a soft moan. I looked down passed my newly formed raging. We started studying sitting next to each other and in between, Nancy was asking questions like a teacher and scolding me whenever I gave her wrong answers. She had a dominant character.This continued for 15 minutes. I was playing with my pen while studying and suddenly, I lost grip and my pen fell from my hands. I tried to catch it with my reflex and my hands directly landed on Nancy’s left thigh! I grabbed her thigh instead of the pen while the latter fell on the floor!I immediately took my. When the head of my cock was almost at the entrance I pushed myself back in.I started to get a steady rhythm going in fucking this wonderful woman as I saw my male partner lean over and start to make out with my ex-girlfriend. His own sister. This just turned me on that they would both want to touch each other in such a sexualised way, their tongues were dancing like crazy with one another as my hands made their way to her two beautiful breasts.I started to squeeze and massage them as I picked. She moved down to my cock and hand, removed my fingers from around my cum covered cock and started licking them clean. She then licked my cock, starting right at my balls up to the tip and sucked the last bit of cum from it as it went limp and finished off by licking the cum from my stomach. She opened her mouth showing me its all gone. She moved over the bed to her side, switched the light off, moved back to my side and kissed me. I could taste my own cum on her tongue. Goodnight my love. She.