I live with my parents. Their bedroom is on the main floor and mine is upstairs. My sister moved out last year so I've got the whole floor to myself. The extra room is now my den. It's set up with a TV, DVD, computer and a desk.
About a month ago I got up late feeling mighty horny (as usual). I took my shower and then went to the den for a nice jerk off session. After drying off I sat back naked in the recliner chair and lubed up my hard cock. Sometimes I turn on the TV without any sound to help distract me from cumming too fast. After about fifteen minutes I was nearing the brink when I heard the doorbell.
I bore down on my cock, stroking as fast as I could so I could finish up before anyone disturbed my leisure time. My mom called up to me that my friend Justin was downstairs. I had forgotten that we were booked to play tennis at noon. I yelled down that I'd be there in a minute. Just then I shot off my load.
As I scrambled to my feet I could hear Justin coming up the stairs. I made it to the bathroom, holding my cock and trying to keep the cum from dropping onto the floor of the hallway. 'Heh, Jus. Be with you in a sec.'
At the sink I wiped myself clean and put on my t-shirt and boxers. I was about to head down the hall to my bedroom for my tennis shorts when I noticed Justin had gone into the den to wait for me.
'What the fuck is this?' he yelled out.
From the doorway I saw that Justin was getting up from the recliner chair, wiping his thigh. He had his tennis shorts on. I hadn't noticed but I had gone off on the recliner and in my rush to get to the bathroom, I missed a big blob of cum that fell on the seat of the chair. Justin sat in it. The recliner is leather, so my cum hadn't soaked in at all. Justin knew instantly what he sat in, and now he had it on his hand too. He looked up at me with a look that could kill.
'Sorry dude, but you surprised me in mid-action. I didn't know you were heading for the den.'
I was embarrassed and passed him some tissues to clean up. He wiped off his hand, his leg and tennis shorts. Then we both started to laugh. The back of his shorts were still quite damp but it could have been anything-who would know at the tennis courts? I offered to loan him a clean pair of mine but he declined the offer. He's about two sizes bigger than me. I agreed to clean up all my cum blobs in future. Justin said that he'd look very carefully before sitting down anywhere at my house. I think I got the message.