My sons best mate

Aaron is my sons best mate and he spends so much time at our house he has almost become part of the furniture. He has never been a shy lad and I have seen him walking around in just his skimpy briefs, or less, more times than I care to mention. When he and my son were younger I know damn well they used to wank off together looking at porn online and sometimes when I walked in the room I could just smell that musky scent lingering in the airm which was a dead giveaway that they had been stroking. Aaron is 22 now and at his age I was married and settled down, but I don't think he has any plans for that any time soon. He is far too busy enjoying life and having fun, good luck to him I say. A few weeks back, on a Saturday morning the Mrs had gone out shopping as usual and I was sat in the kitchen on a bar stool watching the news with my morning coffee wearing just my underpants. Aaron strolled in stark bollock naked with a lazy lob on swinging from side to side. His morning wood had began to soften but still was at that semi swollen state that made it stand out from his body and he just stood scratching his head as he yawned his good morning oblivious, or just not caring about his current state. He put the kettle on and stood facing me and I found myself just glancing down a few times as you do. As he waited for the kettle to boil he began itching his nut sack that looked freshly shaved. One of these fads that I am afraid I must admit I have found myself doing now and again recently and always leaves me itching the first few days afterwards too. Aaron does not stop at just shaving his nuts though and often shaves the whole kit and caboodle. I guess he can get away with it, but on me it would just look fucking stupid. I have seen him shaving his knackers in the shower before now and I just laugh at his laid back nature. He really doesn't care about his junk being on display. So Aaron makes himself a coffee and asks me if I need a fresh cup and as I reply yes I see his hand go down to his dick and give it a bit of a tug. It is hard to ignore when he is stood just a few feet away and I know he catches me looking so I make a comment about his shaved bits as if that is why I am looking."Makes it looks bigger and the birds prefer it smooth and tidy looking" Aaron says looking down at his workmanship as his hand still holds his todger."Well looks like you done a good job. Not sure I have the time or motivation to do mine like that" I respond, still looking as he handles himself aware of his cock getting firmer"You should surprise the Mrs by shaving it all off, bet she would love it", Aaron comments as his hand squeezes his girth "Yeah not so sure. Would be worried about cutting a chunk out mate", I say with a laugh, looking up at to meet his eyes before my attention is drawn back down where his hand is now ever so slightly stroking. If you need any tips on shaving or a hand just ask Aaron replies poring me a coffee that he then brings over to me. I am not sure if it is watching him handle himself in front of me so openly or the thought of him shaving me but I feel my own cock begin to react in the restricted space of my underpants. His cock is fully hard now as he stands right next to me and whilst I have glimpsed him erect before now I have never seen him just stood there handling himself in front of me. "Are you thinking about it?" He asks with a smirk his hand back on his cock"Sorry?" I look up to meet his eyes wondering what he is implying"About letting me shave you?" Aaron adds"Yeah yeah, well maybe""Think I need a piss", Aaron says, still smirking as his hand drops away from his cock and he puts his coffee down beside mine. I watch as he wonders off with his boner bouncing at full mast. As soon as he is out of the kitchen I begin rubbing my hand over my own swollen member. Feeling the friction through the cotton as my hand moves quickly over my hard cock. Rubbing quickly with the palm of my hand I feel my arousal building up and I hear Aaron flush the toilet and I know he must be walking back down the stairs. I am so close already that I can't stop and feel the warm sensation of warm cum as it squirts against the tight fabric of my underpants and oozes through the cotton. Aaron appears still naked, his cock now semi flaccid and swinging as he walks towards me and I wonder if he can tell by my face that I have just in that brief moment rubbed one out. I let my hand rest on the kitchen bar exposing the wet patch of cum on my crutch and part of me wants him to look and notice. I can't help but notice a crystal clear dew drop hanging from his dick head and wonder if he has just done the same upstairs, a quick one off the wrist in the toilet before returning with his cock showing the evidence. We continue chatting and I am aware of the fresh cum that sticks to my cock head and provides a damp sensation as we drink our coffee.