Years ago when I still lived at my parents house, I was watching TV one evening when the door bell rang. There, standing at the door was a very pretty girl with long dark hair. She introduced herself as Sharon, whom I had gone out with two or three years earlier. And so it was, she'd grown up and had blossomed as they say.

I invited her in and made her welcome. She had become a model, she told me and had been doing assignments in Spain and had some photographs to prove it. I suggested we go out for a drink and she readily accepted. I was, not surprisingly, very stiff in the shower and it took a lot of will power not to wank myself off then and there but she'd always been very sexual before when I went out with her and I was convinced we would be fucking later. I could not believe my luck and I said a little prayer of thanks.

I had to drive as she'd arrived by cab and we set off in my old Chevrolet convertible, she was very impressed, just as I had intended. We went to a nice old pub for some drinks and a chat. We got on like the proverbial house on fire and had a lovely time together. On the way home I suggested we stop somewhere dark for a cuddle. We found the entrance to a field and reversed through it into the pitch dark field.

We started kissing passionately and our hands were all over each other when she spoke those two most dreaded words 'I'm on'. Words cannot describe that feeling of disappointment and most guys will know what I mean.

'No worries' I said, slightly unconvincingly as I gently pushed her hand down onto my throbbing cock. 'It doesn't matter'. The plan worked just as I had hoped it would. She, feeling guilty, had now decided to cheer me up with a blow job and I was not about to stop her! I helped her undo my zip and top button and lifted my arse off the seat to aid her in removing my trousers. My cock which was a rod of iron loudly smacked my stomach as it sprung back from my pants as they too were removed.

She grasped my shaft and raised it to her mouth, her tongue licking just under my helmet, then she took it all the way into her mouth. Heaven. I lay back and closed my eyes and it was then that I remembered that I had a tube of KY Jelly in a carrier bag under the bench seat. 'Hey, I've got a great idea' I said rather cryptically. She stopped sucking and watched as I raised myself up so that I could reach down the back of the bench seat...

I found the plastic bag and put my hand inside it. I could feel the pots of Crazy Colour hair dye in there as my fingers tried to locate the KY tube. Shit, I thought, someone has trodden on the bag and split the tube, I could feel the wet lubricant on my hands. Not to worry, I just slapped some on my cock and lay back to continue getting sucked and wanked off. Sharon continued sucking for a while and then said 'It tastes funny'. I just replied 'Sharon, it's a blow job, not a Pepsi Challenge' and we both burst out laughing. Anyway, I applied yet more 'lube' and she continued sucking and I soon ejaculated deep down her throat. It was fantastic.

I drove her home and dropped her off outside her parents house. I did not hang around as I'd had a 'run in' with her father when I went out with her before and I did not want to 'bump' into him.

When I got home, I said goodnight to my parents and went upstairs to go to bed but first I went to the toilet. I pulled my cock out and nearly fainted, it was emerald green! I then realised what had happened. It wasn't the KY tube that had been split but rather the contents from one of the pots of Crazy Colour hair dye that had leaked. And it dawned on me that Sharons mouth must also be emerald green and that she wouldn't know until she looked in a mirror or worse when she was told by her parents when she said goodnight to them...