When I was eighteen I went into town to buy a pair of trousers, I went to a very well known store and was looking at what was on offer, a shop assistant of about 60 came over to me and asked if I needed any help, I replyed "no thanks", I picked a pair of trousers out to try on and went to the changing room to try them on. I took my Jeans off and was pulling the trousers up when the curtain opened and there was the old shop assistant standing there, he asked, is everythink ok, I replyed "Yes", he said are they a good fit and with that he felt the waist band to see if it was to tight, again I said they were ok, he then put his hand on my cock and asked if they fitted ok there, it was then that I realised he wanted to touch me up, I smiled at him and he came in the cubicle and closed the curtain, he undid the trousers and took them down, he then slipped my undies down and went down on my very hard cock, he sucked me for what seemed ages then I whispered to him that I was going to cum, he took me deeper into his mouth and I took hold of his head and started to fuck his mouth hard, within minutes I was unloading in his mouth until he had drained me, mmmmm, he gave me his telephone number and asked me to contact him, I haven't yet but I have had plenty of cock since then.