When my ex fiancé, Robin and I had been dating for two or three months, it wasn’t unusual for me to spend the night at her place, especially when we had been out clubbing the night before. There were two separate times, that I know of anyway, when we were fucking right when we had woken up in the morning. Her sons shared a room together that was located at the complete other side of the apartment, so we were never concerned about them being able to hear any noise coming from her room. Her and I were both pretty loud during sex, but she would often get extremely loud! So loud I’d have to cover her mouth with my hand trying to keep her muffled, if even a little bit! Anyway, this one morning, we were going at it hot and heavy! The sun had brightened up the entire room. We were both completely naked and all the blankets were on the floor. We were fucking in the missionary position and I had her legs pinned forward as far as they would go! I was pounding her so fucking hard and furiously, the room echoed with the sound of our bodies slapping together! It was equally filled from how loud she was moaning, grunting, almost screaming for me to fuck her, to fuck her harder and telling me over and over for me to cum inside her, how much she wants me to cum inside her pussy!! As expected, my full attention was on one thing, and one thing only!! It wasn’t until I heard the bedroom door close behind me, that I had thought I remembered hearing a noise minutes earlier, but was too focused to give it any thought. Her youngest son was the only other one that was home that day, so it was obvious who it was. Once we finished, I quietly asked her if she had heard the door to which she said she didn’t and so I told her. We were both so embarrassed, we didn’t know what to do!! I mean looking from the door would have given him a perfectly clear view of my cock sliding in and out of his Moms pussy, not including everything he heard!! I suggested that we shouldn’t say anything about it and to wait a little while and then either just me, or her, or both of us, just have a talk with him about knocking before he just comes into the bedroom, just like we always did with him. We didn’t talk about what he had seen or heard and just didn’t make an issue of it. Although personally, deep down inside, I couldn’t help but wonder if he actually did it on purpose.. especially when he did it again!! The second time was much like the first time, same conditions as before. Early morning, completely naked, with the only exception being that this time, she was on top and riding me! She was riding me really hard and once again, was every bit as loud as she could be!! This time however, because I was laying on my back, I actually seen him slightly after he opened the door! His immediate reaction was to quickly close the door, and he made no attempt to be quiet about it. He shut the door loud, and from the look on his face, he actually looked like he didn’t mean to just walk in, but forgot to knock. Just before I had seen him, I had pulled Robin so that we were chest to chest and I was thrusting myself up and fucking her hard and fast! As soon as he shut the door, that was the first thing I thought of! For the second time now, he seen his mom getting fucked in clear view!! It was only a short time later that I wondered if the look on his face was from forgetting to knock, or was it because I had seen him???