Surprised Son

Over the last couple of weeks ive noticed my son doesn't wear underwear,if he's helping me put the shopping away and im kneeling down i see his dick bouncing around right next to my face,it's something i started looking out for and one time i was even tempted to just pull down his shorts and have his dick in my face,it's been driving me crazy i just wanted him and nothing seemed to work, Sunday evening he was showering with the door open just a little as i came past i asked if he needed a hand i heard him laugh as i carried on to my bedroom,I was sorting something out and turned round to find him standing behind me butt naked and aroused,I asked again if he needed help and he looked down at his hard dick and looked back at me so i asked him to came and stand Infront of me as i sat on the bed,I took off my top and bra and his dick twitched and knew he liked,I held his 5inc dick and slowly started wanking him off pulling the foreskin all the way back each time,his moaning got louder and he was tensing up and knew he wouldn't be far from cumming,I played with his balls as i started wanking him faster and without any warning he blasted my face with the first cum shot and quickly followed by many more, once he finished he stepped back and i got up to have a look at what he had done to me and i was covered,my tits face hair and couldn't open my right eye because his thick spunk,I started laughing and said to him look what you done and could see he was still hard,he asked me not to wipe it off,I forgot what teenage lads really want at that age it's sex and didn't need to even ask him,I bend over my dressing table and watched him in the mirror walk up behind and in it went,I'm watching the expression's on his face as he's fucking me it was funny, within two minutes he was pumping his hot young cum into me,I was disappointed at first then thought about it it was his first time,that hasn't been the only time it's been everyday he seems to enjoy himself so why stop.