She was on her side. I remember this like it was yesterday.With my right hand I started jacking my dick. She asked me a few questions like if I usuall...y did it slowly or fast, and if I came in a tissue or shot it on my tummy, stuff like that. She watched me intently as I jacked. I was so turned on by what I had just witnessed, and the excitement of doing this in front of a woman, that I didn't last long. I suddenly started shooting cum all over my lower stomach. Afterwards, she got up and got. I stepped the short distance to the car, close enough so I could peer into the drivers side window. The guy smiled at me and I could clearly see his erect penis. He held it tightly at the base with his fist and it extended easily four inches beyond. It was thin, much thinner than any cock I had ever seen. The shaft was a pale white, smooth with small blue veins but the head was an almost grotesquely large in comparison. He squeezed and stroked it and resumed his masturbation, obviously. I held her hand & gave my cock in her hand. She was in some thoughts , kept playing with my cock, my went hard. When she felt , she immediately got upShe- hey what is this. Not again pleaseMe- you only made it hard againShe- no no , I cant. Already we have done enoughMe- come on sexy, lets enjoyShe- please , I shall die. Today vishal ( her husband) will be also expecting me in night. Please stop.She was saying but resistance was not there. I kissed herMe- don’t worry , you will freshen up till. As close friends, sharing seemed natural though I didn’t at that time see how far that might go!My girlfriend of the time was at college outside of London and so we didn’t see each other as often as we might have liked to. This was OK most of the time but it meant we didn’t get enough sex and most weekends when we saw each other, we spent together in bed. Although we were boy- and girlfriend, there was also a tacit, if not explicit, understanding that we might have other partners and it didn’t.