I always had a suspicion that Debbie wasn't treating Michael very well. Over the last few visits they had made to me he seemed to be quite subdued and quiet and didn't join in the chat unless spoken to. That and the way Debbie spoke to him at times made me think all was not well at home.
She had always been the vivacious one out of the two of us and as a young woman had attracted a steady string of 'suitors' whereas I, the plainer and more dumpy sister, was not in the same league. After several relationships she eventually married Michael, a cheerful and pleasant chap, and all was well. They had two kids, like I did, all now flown the nest along with my husband who had opted for a younger and slimmer model after 25 years of an 'alright' marriage which was never very spectacular in the bedroom.
To be honest it was a bit of a relief as the staleness and complete lack of good sex was getting to me and I was having to get my satisfaction where I could. There are a couple of guys from work who I see from time to time - sometimes together - and my best friend Lizzie who only lives a few doors down and is always up for some fun. As a final resort if nobody is available I have my little electric friend in the bedside cabinet along with a couple of spare batteries.
It was over a few visits that I got to understand that Debbie might be playing away. Hints were being dropped, and hastily covered up comments and her red face eventually prompted me to ask her. It was on one of their visits and Michael had gone up to the toilet, I asked her outright and she blushingly nodded her head and held her finger to her lips. I couldn't understand why she would want to with a husband like Michael but as she put it softly,
'Ellie, we have been married for over thirty years and sex is almost non-existent. And when it does happen it is so predictable it does nothing for me.'
I have to say I did know what she meant.
'Anyway it's nothing serious, just sex. No emotional ties just excitement for the both of us.'
'How long?' I asked.
'A few months now, he's a coach at my gym.'
'Where?'
'Usually his car, sometimes his place. Have you ever fucked in a car? It's so exciting! A bit cramped but a real turn-on.'
'Does Michael know......or suspect anything?'
She was silent for a few seconds. 'I honestly don't know,' she said, 'he's been very quiet for the past few weeks but he's never said anything.' She paused. 'He's not as relaxed as he used to be and is always finding things to do somewhere else when I'm with him.'
'Any marks or bites on you?'
She blushed even more and nodded. 'But not where he would see them.'
'What about your panties?'
She shook her head. 'No he always uses a condom.'
'That's fine but you will still be very wet if you're anything like me.'
She gave me a long look. 'I hadn't thought of that.'
'You'd better be careful Debbie, you wouldn't want to lose a man like him.'
Just then we heard the toilet flush upstairs and the topic was closed. Michael returned to the room and looked a little flustered and seemed anxious to get going home. He settled for a cup of tea before they left but it was clear he didn't want to stay much longer, and after a bit of a grumble from Debbie they got up to leave.
Far from the usual hug and kiss on both cheeks from Michael, all I got was a quick peck and goodbye as he hurried to the car. As Debbie hugged me she whispered 'Please don't tell anyone.' and I nodded my agreement and watched them drive off.
I cleared away the tea things then remembered the washing in the basket upstairs. As I started to sort the lights from the darks I picked up a pair of my panties that were soaking wet...or at least the back of them was. As I examined them I saw another stain on the dry part still slightly damp but drying whitish and I immediately knew what it was. For confirmation I held it to my nose and touched the tip of my tongue to it and there was no mistaking it. It was spunk, Michaels spunk.
It couldn't have been anyone else as there hadn't been another man in the house for weeks and this was still drying. So dear Michael who was currently being cuckolded by his loving wife had given himself some satisfaction from my used panties. Well good for him! When I came to think about it he had been in the bathroom long enough for Debbie to tell me what she had and then he had seemed a bit spooked and wanted to leave quickly. Something must have happened after he had cum, perhaps he'd dropped them or tried to rinse more sperm off them, but either way the evidence was fairly clear.
Suddenly a thrill went through me and I felt myself juicing up heavily. It was both satisfying and exciting that I had been the means for him to get something back on his cheating wife and perhaps the sort of thrill he hadn't had in a long time except from his right hand.
I carefully placed them on the edge of the basin then felt up under my dress to my panties. They were very wet and the first though that went through my head was how much Michael would love these. I was sorely tempted to make myself cum but on impulse picked up my phone and called Lizzie.
'Are you busy?' I asked
'Not really, just getting dinner, why?'
'Got something to tell you.....and show you.'
In less than three minutes I was answering the door and leading her up to the bathroom. Her eyes widened as I showed her the panties and told her what I thought had happened, before lifting them to her nose for her to sniff. She looked at me and nodded before sticking her tongue out to lick the nearly dried patch a couple of times.
'Oh yes,' she breathed, 'this is definitely cum.'
My face was flushed and I felt so turned on that she couldn't fail to notice the signs and suddenly reached up under my skirt.