I came home from work on Friday and was looking forward to the weekend, it had been a hard week and I was in need of a little rest and relaxation. She...started telling me that one of her gym instructors had massaged her neck for a few minutes earlier that day and he told her that she was very tense and tight. She explained that Chris, her instructor was a part time masseur and after rubbing her neck and shoulders for just a couple of minutes he had told her how tight and tense she was and that. I also offered her blanket as the cooling was high which she agreed. As both of us were sharing the same blanket, so while reading out hands touched which she dint mind.Her presence had a effect on my organ and devilish plan came to my mind to take chance. While reading I leaned on her and tried to touch her breast with my elbow. It sent a waves in my body. Due to shaking of the train this touch was intermittent but regular. As she was near to me so I could feel heaviness in her breath.I looked. Her cock was pretty fucking big, especially when it was going up my ass. We struggled to find the right angle as she attempted to penetrate me and the condom broke. She pulled it off and asked if it was okay to proceed. I acquiesced but told her not to cum inside of me, and then the real fun began. She was able to slide about four inches of her dick inside me before she hit some kind of anatomical barrier. She worked herself back and forth, in and out, but I simply could not relax enough. I grabbed the towel and cleaned the spunk of his arse and cleaned all the spunk and lube of his cock a bollocks.Graham flipped over onto his back and I fell into his arms, he hugged me really tight smiled then kissed me, that fucking first thrust put stars in my eyes he laughed. I'll have some more of that he said. He asked me if he could stay the night, no problem I replied but what about your Mrs, I'll text her and say I'm doing a double shift he said.Graham went off to have a shower and I.