My first bi experience happened by chance while I was at University. I'd had quite a lot of sex with a string of girlfriends before I'd left home and moved to the big city to study. I'd spent ages trying to get my hand in their bras and down their panties with mixed success. I wasn't a virgin as my longstanding girlfriend had let me do it as a gift before I went to university, and I had enjoyed it a lot compared with the usual end of snog handjobs. The heat and grip of a juicy pussy rubbing against a pulsating cock is unbeatable.
But I still wanted more, in fact what I really wanted was a good blow job. Although my girlfriend had put it in her mouth once, mainly out of curiosity, she had never given my cock a good sucking; and she made it clear that the thought of having sperm shot in her mouth made her feel sick. No matter how much 69 style sex we had, the most she would do was kiss it - and that was on the shaft not the knob head. Although I had a stack of porno magazines showing oral sex in every angle, I still hadn't had a proper suck. It became an obsession, made worse by my wanking fantasies of being sucked off by a string of beauties.
But I had no idea that Friday morning as I finished my only lecture of the morning and walked towards the city centre, that I was to have an experience which was to broaden my sexuality forever. I was nursing a semi erection and held my manila file in front of me to disguise it and I was hoping it would go down before I caught the bus but it didn't. I blamed the girls on the course, it was high summer and they weren't wearing much. One in particular had toyed with her pen with her tongue and in my mind , she was licking my cock. I was getting harder not softer and there was only one solution, a quick wank. There were some public toilets a few yards down the road and I awkwardly shuffled along as fast as I could.
One cubicle door was ajar and I quickly entered and closed it behind me. With my back to the door I unbuckled my trousers and pulled my pants down. When I wank I like my cock and balls to be totally free. With a couple of strokes my cock was proudly standing with its veins pulsating and the knob head a throbbing red. I have a big cock and I am proud of it, but this was no time to stare as I needed to cum. The slow start up strokes soon quickened and my balls were swinging in time when I froze stock still, the hand clutching and stretching my foreskin held in space. I heard someone say something, it was a male voice and it seemed to be addressing me.
'Hurry up, I haven't got all day.'
I was stunned. Who was speaking? The voice was well spoken, in fact quite school masterly. And it became insistent.