There's a line and you usually know where it is but sometimes it blurs, you're fine one minute then it changes in a heartbeat. Evelyn moved into the house next door. She was in her early 70's, a trimly built, grey haired grandmother who was still sprightly for her age. Over the next few months we would bump into each other, pass pleasantries etc. One day I was in the garden and she called over the fence in a panic because her kitchen sink was blocked and she wanted to get it fixed. I shrugged my shoulder and offered to fix it. It didn't take long and she asked if I wanted a drink of tea or something. I sat and chatted with her for awhile before leaving. From there it became a regular thing, couple nights a week I would und for a "cuppa", she was lonely and enjoyed the company I guess and to be honest, I enjoyed listening to her talk about her life. One night we were talking and I noticed a short black negligee , folded up from just being washed, I made a comment about it, she blushed and told me it was a small pleasure she did for herself, buying sexy lingerie and nighties although it was only for her benefit. I asked to see and she took me into her bedroom, opening the middle drawer she blushed as I gasped at the range of nighties, teddies , robes etc it contained . We both knew we were crossing a line but at that moment I didn't care. I ran my fingers through the drawer, then pulled out a red silk nightie. This one, I said, let me see you in this. She blushed and said no, I told her I would go back to the lounge and if she wanted to she could no pressure. I left her in the room . About 15 minutes went by, I was about to leave when she walked into the room. I sat there stunned , the nightie clung to her body, the hem stopping about mid- thigh, it showed her body off to good effect. She was embarrassed but also a little excited. I stuttered a Wow, then told her she looked great. She gave a little bow and turned to leave. Do I get to see the black one ? I asked She hesitated then left the room. I sat there, my hand moved up and massaged my erect shaft under my jeans , I couldn't believe how horny I was. A few minutes later she walked back in. The black negligee was even sexier, and shorter. She looked at me shyly and told me I was the only man to see her with it on. It was filmy and hung loose around her body, slightly see through. I gulped and looking at her I told her she was beautiful . I hesitated then whispered, the bra you're wearing kinda ruins the effect. She looked at me, then left the room again, walking back in a few moments without her bra. I couldn't stop staring at her body. The effect she was having. I stood up and walked over to her. Thank you, I whispered, I touched the hem between my finger and thumb just gently feeling the material. She stepped back placing her hand on my chest. I better get dressed she said. I nodded and she walked out the room. I stood there for a moment then followed her. She had just got into her bedroom and was looking at herself in the full length mirror in the corner of her room. I walked up behind her my arms going around her waist, my hands moved up and cupped her breasts, they fitted perfectly in my hands. I pressed inwards, letting her feel my arousal. She whispered that we shouldn't and I whispered too late as I started to kiss the back of her neck, She just stood there, arching back a little as my hands explored her body, We moved over to her bed and she lifted her arms for me as I removed her nightie. She was smiling as I quickly undressed her eyes fastening on my hard cock as I got on the bed, It's been a long time? She whispered , I kissed her? Letting my hands touch her breasts her stomach moving in between her thighs. I don't know what I was expecting but it was no different from any other woman, Maybe a bit slower, a bit less passion but that brought out the sensuality and eroticism of what we were doing, I took my time, savouring what she was giving me, And it was amazing