My Wonderful Wife

I have been married for 14 years. My wife is also my best friend as well as my soul mate. Ill health has meant that I can not really fuck her as hard and fast as she likes. It also means that in recent months I have found it all but impossible to cum. My wife is not as sexually driven as I am and this is fortunate as it lifts the pressure on me to "perform" As I said, I have had trouble cumming. My wife will do anything I ask to get me off, and is ready to try anything, but of late it hasn't been any good. Until yesterday. My wife has a sister. Sarah is much younger than my wife (who is 23.)Sarah is 18 and I real looker. My wife (Helen) had just come home. She busied herself in the kitchen for a while and then said to me "Come to bed. I want to make you cum." Now, being suddenly and unexpectedly asked to go to bed has always been a turn on and sure enough I was hard even as I walked to our bedroom. When I got in there, Helen was in her bra and panties and motioned me to lie down on the bed. She stripped me naked and kissed every inch of me leaving no part untouched. Then she lay down beside me and started to jack me. Usually, Helen will talk dirty to me, or tell me of a time when she was particularly well fucked by one of her former boyfriends. (I find that a huge turn on) This time, as she jacked me she said."Sarah would love to have your cock in her." I stiffened even more at this. "She's a horny little bitch and I know she wets up thinking about you fucking her. " I liked this a lot, even, I thought, if it was just made up for me. Helen increased her pace. "I was telling her that when you cum, you shoot loads, and she told me that talking about it was making her wet." (I hoped so!!) Then felt the very beginnings of an orgasm starting. Helen must have sensed this because she added "In fact, I asked Sarah HOW wet and do you know what she did? She took of her panties and gave them to me to see. Imagine that. Sarah's blue panties, stained dark with her cum stains." (The pre-orgasm got stronger and I thought that maybe this time, I just might actually cum.) "In fact" she continued, theres no need to imagine" At this point she reached under her pillow and pulled out a pair of blue panties. By now the wetness at the crotch had dried to a white stain. Helen pressed the panties to my face. "Smell Sarah's pussy. She told me she jills herself thinking about us fucking. Tell me when you are going to cum... I have something I must do." She carried on jacking me faster and faster. "Yes... thats it... imagine little Sarah fucking you.... yes.. yes Chris.. do it in her." At this point I moaned that I was going to cum and Helen guided it into a huge pool on my stomach. Then, she methodically mopped it up with the crotch of Sarah's panties. Helen then told me that every word she had said was true and that Sarah had agreed to let her have the panties only if she returned them with my cum on them. She also said that Sarah really did want to fuck me. I don't know how I feel about that really, I suppose it is some mens idea of heaven, but even though I guess I would like to, I would have to be sure it was what Helen wanted too. Jacking me off into her sisters panties was lovely and a very loving thing to do, but I wouldn't want to go too far. Several days past and Sarah was at our home. She told me that she had enjoyed what Helen had brought back for her. She also said that she did indeed want me to fuck her. In what seemed like a flurry of activity, suddenly she was on her back over the table, her panties pulled to one side and I was inside her. Helen came home and we barely noticed until she said "About fucking time... mind if I join in?" I was then treated to the wonderful sight of my wife jilling herself off.