Thanks to SexyKitty_B for editing.
The memory of that cabin and what we did there, continued to fuel our lust for weeks after that. Even afterwards, the sex with Erica remained awesome, not to mention a tad nasty. Until she came back from a checkup one day and said that the doctor had prescribed bed rest.
With still three months to go in the pregnancy, that was going to be quite an adjustment. As I could work from home most of the time, I started pulling my weight around the household and did my best to give Erica as much rest as I could. Unfortunately, it didn't seem to be enough as she was still tired all the time.
As was to be expected, our sex life diminished significantly and we went from fucking and fooling around every day, to just once a week. The first week, she threw in a few handjobs and a blowjob, but by the second week, those little extras were gone too. I adapted and started jacking off again, late at night, behind the laptop. Erica knew and she let me have my fun, realizing that she was in no condition to help me out.
About a week later, Erica informed me that she'd reached out to her stepmom for help. I was a little surprised as they had always had a strenuous relationship. When her real mom passed away many years ago -- way before I met her -- part of Erica had expected her father to stay miserable and alone for the rest of his life. Instead, he started dating Elaine and later married her.
Although Elaine was wonderful and really made her dad happy, Erica had never been able to completely accept her and there had always been some distance between them. Still, whenever we called upon her, she was always there for us. This was no exception.
Upon hearing what had happened, Elaine had insisted she'd come and stay with us till after the pregnancy. She would help around the household and had also offered to massage Erica's feet and give her all the back rubs she needed. I supposed that sealed the deal.
As soon as Elaine arrived, she started protecting and shielding Erica from everything she thought could stress her out or potentially fatigue her too much. She cooked, cleaned, ironed and gave Erica foot rubs several times a day and sometimes a back rub before bed. I locked myself in my study most of the time, trying to stay out of their way.
One day, about two weeks later, I had been out meeting with a potential client. As these things usually take quite a bit of time, I had told my wife and mother-in-law that I'd be out for the rest of the morning and not to expect me for lunch. As it turned out, the client was a real asshole and after only twenty minutes it was clear that we wouldn't be able to work together. I took the first available bus home.
We live on the top floor of a three story apartment, with just one living unit per floor. As I was reading my messages on my phone, I was probably being extra quiet. I used my key to open the door and looked up. I immediately knew that my life was never going to be the same.
Erica, my pregnant wife, was on the couch, naked from the waist down, her legs spread wide, and Elaine -- her stepmom -- was licking her trimmed twat. Both of them were startled and quickly tried to cover up what they were doing. Feeling embarrassed, I closed the door and leaned against the hallway wall, trying to come up with a logical explanation for what I had just seen. I couldn't quite wrap my head around it. Why? How? When?
About ten seconds later, Elaine stormed out, ready to barge down the stairs, thinking I had made a run for it. When she saw me standing there, she stopped and put the door slightly ajar.
"Please don't be angry with her," she said.
"I am... I am not angry... I just... I don't know... how long has this..." I started to ask.
She didn't reply, but instead reached out and cupped the big bulge in my pants.
"I uh... we shouldn't..." I stammered.
"... we should take care of this," she whispered, as she got on her knees and unzipped my pants.
As she pulled my big dick out and wrapped her right hand around it, Elaine looked up and whispered, "Erica is in no condition to deal with this... BIG... problem."
Before I had a chance to reply, she slid her mouth over my shaft and started bobbing her head up and down as she held her hand tightly wrapped around the base of my dick.
"Oh fuck," I grunted, leaning back against the wall. This was weird, to say the least, with Elaine being well in her fifties and all... but still, I had been a while since I had had a warm, wet mouth around my dick.
After about three or four minutes, Erica suddenly opened the front door, checking up on us. She was surprised, to say the least, to see her stepmom sucking me off in the hallway, but she didn't get angry -- which would have been just a tad hypocritical of her.
Elaine felt me tensing up and shuffling and looked up behind her.
"Don't worry about it, hon," Elaine whispered soothingly, "I've got it under control."
While she looked up at her stepdaughter, her right hand continued stroking my big cock, keeping it hard and ready.
"Go back to the couch, let me finish up here, and I'll be with you shortly, okay?" she whispered.
"O-okay," Erica whispered, giving my fat dong a jealous look before turning back and putting the door slightly ajar again. As soon as Erica was back inside, Elaine turned her head back towards me and continued sucking me off zealously.
"I am... cumming," I warned her, some two minutes later, as I felt my balls tense up.
Elaine took my dick out of her mouth, moved out of my line of fire and jacked me off furiously, making me spurt all over the hallway. She looked at my spewing dick and didn't let up until she was sure that all the cum had left my balls.
"Was that okay?" she asked, as she got up and looked at me.
"That was... uh, great," I said, still not having come to my senses.
I zipped up and we headed back inside. I closed the door behind me and as I put my laptop case down on the floor, I looked at my wife and she looked at me. It was probably one of the strangest moments of our time together, so far. Before Elaine had a chance to sit down, I cleared my throat and asked, "Elaine, can I have a quick word with my wife?"
"Oh sure," she said, not really having a choice and traipsed into the guest room, closing the door.
I glanced down at my wife, who was still naked from the waist down.
"Erica, what the fuck?" I whispered.
"I know," she whispered, embarrassed, "I just kinda happened; she's just been so helpful, taking care of me, helping me destress..."
"Yeah, I can see that," I replied, running a hand through my hair.
"I can't remember you putting up much up a fight just now in the hallway," she retorted.
"That's not fair, she caught me by surprise," I replied. Not my best comeback, I know.
"Oh, you poor thing... did it accidently fall into her warm, slutty mouth?" she asked, mocking me.
"Look Erica, I..." I whispered, calming down and about to try and smooth things over, but then she had to go and add one more thing.
"I can't believe you cheated on me," she said, "With my stepmom."
"What? But you just... I saw you... she was..." I stammered, "My god, have you completely lost your mind here?"
"Me? I was just wondering if maybe mom didn't accidently suck your tiny brains out through your dick!"
"Fuck you Erica, I can't talk to you when you're like this," I said and stormed into our bedroom, slamming the door shut behind me. I paced nervously around the bed, thinking about what had happened and what everyone had said. I soon realized that I had said some things which I probably shouldn't have. God, those hormones were turning her into a real bitch.
When I calmed down and realized that things may not be as bad as they seemed, I wanted to go and apologize to Erica. As I walked back out, I was surprised to see Elaine sitting next to her daughter, two of her fingers up her daughter's twat, fingering the shit out of her.
Erica shot me an annoyed look. I immediately apologized and closed the door as quickly as possible. Fuck, I just hoped I hadn't ruined things a second time, I thought. I sat down on the bed and took off my shoes and coat, realizing I was still wearing both.
When after a few minutes, I heard Erica starting to moan, I smiled, content that she was getting off. Her moaning intensified and lasted quite long. Hearing her, and realizing that her stepmother was getting her off, was enough to make my dick hard again. Figuring now was not the time to masturbate; I flicked on the TV in our bedroom and started watching the news. I didn't hear a word of it, of course, my mind and ears focused on what was going on in the living room.
