I opened my eyes and was confused. I wasn't in my bed and couldn't figure out where I was. Then I looked at the woman next to me and it all came back to me. The woman was my forty-five year old mother-in-law, Karen, and she was completely nude. Her large soft breasts were pressed against my side. She was obviously a little chilled because her finger-tip-sized brown nipples were hard. Karen's long gray-streaked brown hair partially hid her face, but I could still see that sleep and satisfaction had erased some of the lines around her eyes and mouth.
The events of last night came flooding back to me as my brain woke up. Karen and I had made love for the second time, licking and sucking and fucking until we had completely worn each other out to the point that we had both fallen asleep in her bed. Which brought me to where the present. I was still in my mother-in-law's bed and my wife, Nikki, was due home from her job at the hospital at any time.
Then the room went dark and I was momentarily confused again. A second later it hit me. The window in Karen's room faced the driveway and the light that had allowed me to see my lover had come from there, which could only mean that Nikki was home! I jumped up, startling Karen.
"Nikki just pulled in the driveway," I said quickly as I pulled my shorts on. Karen gasped and started trying to erase the evidence of our lovemaking, visible even in the dark as a large stain on her blanket. "We'll wash it," I said a little more harshly than I intended. "While Nikki's sleeping. Now stay here and be quiet until she IS asleep." I ran out of my mother-in-law's bedroom and into mine. I quickly roughed up the blankets and pillows and slipped between the sheets and pretended to be asleep.
Less than two minutes later, Nikki quietly slipped into the room, gathered some clothes, and then slipped into the bathroom. I breathed a sigh of relief when I heard the shower start. When Nikki came out of the bathroom, I pretended that she woke me up and I got out of bed "to let her sleep", and took my own shower.
When I got out, Nikki was already softly snoring. I grabbed the clothes hamper from the bathroom and slipped out the door. If Nikki woke up, it would be easier to explain washing Karen's blankets if we were doing other laundry also. I went directly to Karen's room and was immediately grabbed in a fierce hug.
"My god, I thought we'd been found out for sure," Karen said into my shoulder.
"We've got to be more careful, if we're going to keep this up," I told her. "No more sleeping together, regardless of how pleasant it is," I said with a smile. Karen looked up at me and kissed me.
"Yes, it was pleasant," she said. "It'd been far too long since I'd slept beside a man." She sighed. "The drought begins again." I hugged her tightly.
"We'd better get the blankets into the laundry, if we want to have them done before Nikki gets up." With that, we both grabbed the blankets off my mother-in-law's bed and took them to the laundry. They were soon done and in the dryer, so I started sorting the clothes from the hamper.
A pair of Nikki's panties was sitting on top of the dirty clothes and something caught my eye. I looked at them a little closer and saw that there was a crusted white spot in the crotch of her panties. I quickly dug down to the bottom of the basket to find clothes Nikki might have worn last time she worked. At the bottom was another pair of crusted panties. My wife was fucking around at work and I didn't know whether to be angry or jump for joy. I called Karen over and showed her the evidence I had found.
"I think this may give us a little leeway," I told my mother-in-law, giving her a quick kiss.
"You may be right," Karen said. "But we still can't have her walking in on us."
"You're right. It'd be better to be on the giving end of that scenario than on the receiving." I tossed the cum-stained panties to one side, saving them as ammunition for later.
The scene in my bedroom later that afternoon (after having sent the kids to play with their cousins) was about what you'd expect. I tossed the cum-stained panties at my wife and asked how long it had been going on. She broke down in tears and confessed to having had a series of affairs for the last couple years. I admitted to my own affair – leaving out who my lover was – and told her I'd make a deal; she could fuck whomever she wanted, even "working late" or extra days, as long as she stayed discreet and neither I nor the kids saw anything. In exchange, she wouldn't pry into my affair and I would keep it just as discreet as was expected of her. She sobbed harder, realizing that I had given up on the marriage just as she had two years ago, but she agreed.
I didn't see Nikki the rest of the day until she came out dressed for work. Her eyes were red and puffy and she didn't say anything as she walked out the door. As soon as my wife was gone, I found my mother-in-law, wrapped her in my arms and gave her a long soft kiss. It had been almost harder staying away from Karen today than it would have if Nikki was out and about in the house. I had left the kids at their cousins' because I hadn't known how the day was going to play out, so we had the house to ourselves again for the first time since we had made love.
"Are you sure this is what you want," Karen asked into my shoulder as we held one another.