This story is fictional based on some basic facts. It does contain incest, so if that does not interest you, please do not read. I don't condone incest in real life, I use it for adult entertainment only. All characters are at least 18 years old.
I had some personal business to take care of near the city where Zoe and Zack lived so I contacted Zoe to let her know that I would be coming over to say hi and to take them out to dinner. Zoe responded that she was going to be working late, but Zack would want to go out and eat.
I stopped by there place and Zack was waiting for me. We went out and had a nice dinner. The restaurant we ate at had a movie theater in the same complex and Zack asked if we could go see a movie that he wanted to see. I said, "Okay, I'll let your mom know that we'll be back later than expected."
I sent a text to Zoe, and Zoe responded, "Okay great, have fun!"
We walked over to the theatre and found out that the movie that Zack wanted to see was very popular and was 'sold-out'. Zack being bummed out said, "I guess we'll be home early now," as he sighed.
We got in my car and headed to Zoe and Zack's place. As we walked up to the house, we saw the lights on. Zack said, "My mom must be home already," with a puzzled look on his face.
Zack looked at me and I shrugged my shoulders and said, "Maybe your mom got off work on time."
As Zack opened the front door, both of us saw women's clothes strewn all over the floor, as there was dresses, bras and thongs scattered everywhere. I looked at Zack and whispered, "I think your mom has a special visitor," and winked at him.
Zack had a grin on his face and whispered back, "Let's sneak up on them and see what they're doing."
I nodded back as we slowly walked through the house not knowing where they were. Then, we heard moaning coming from upstairs, so we proceeded up the stairway and headed down the hall to Zoe's bedroom.
When we got to the door, which was cracked half way open, we peeked in to see Zoe and a Black woman in the '69' position, munching on each other's cunts. Zack gasped but covered his mouth so the sound wouldn't travel. I smiled and quietly whispered, "Let's watch for a while and see what happens."
Zack gave me the 'thumbs-up' signal and smiled.
Zoe and the other woman were so engrossed with their oral activity that they could not detect our presence. The both of them were moaning and sighing as they loudly slurped and licked each other's crotches. This went on for many minutes when the other woman, who was on the bottom, yelled out, "Oh fuck Zoe, I'm going to cum!"
Sure enough, we could see her body start to shake and shudder, then she blurted loudly, "I'm cumming!"
Zoe kept her face in her crotch as the woman orgasmed. The woman bucked and tried to arch her back but was pinned by Zoe's body. When the woman settled down and started to relax, Zoe got off of her and said, "Wow, that was a powerful orgasm," as she rolled to the side of the woman.
The woman said in a soft voice, "Yes, that was a great orgasm..." as she drifted off to sleep.
Zoe gathered herself and sat up and ran her hands through her hair on her head and sighed. Zack slowly walked in with his index finger over his mouth giving his mom the 'shish' signal. Zoe saw him and jumped up and whispered, "What are you doing home?"
Zack walked over to Zoe and hugged her and said, "The movie that I wanted to see was 'sold-out' so we came home."
Zoe said, "Where's Ken?"
I stepped in from the doorway and said, "I'm right here."
Zoe said, "How much did you guys see?"
I said, "We saw enough to know that you both enjoy eating pussy," as I chuckled.
Zack said, "Who is this woman?," as she was still passed out.
Zoe said, "She is a co-worker of mine, Brianna."
Zack asked, "How long have you two been having sex?"
Zoe said, "Only for about a week. It was through different conversations that we've had that has led us to this."
Zack said, "Well mom, watching you has gotten me really horny, I want to fuck."
I said, "I don't mind watching."
Zoe hesitantly said, "Oh, okay."
Zoe laid down back on the bed and Zack stripped naked very quickly and climbed on top of his mom. I sat down in the big chair that was up against the wall to watch the incest sex show.
Zack's cock was already rock hard, sticking out it's full 8" and 2 1/2" in diameter with it's bulging veins running throughout. Of course any 18 year old kid gets excited over some of the simplest sexual situations, but watching his mom in a '69' with another woman totally turned him on.
There was no foreplay here, Zack immediately guided his big cock towards Zoe's pussy, (which was dripping wet from the oral she was getting from Brianna), and pushed it in slowly. Zoe grunted a bit as she was impaled by Zack's big penis. Zack let out a big sigh as he penetrated deep into his mom's wet cunt. Zoe said, "Oh my, I love your big cock in my pussy, Zack."
Zack was so turned he started to hammer his cock forcefully in and out of Zoe's twat. Zoe yelped, "Oh yes, fuck me, fuck me hard, Zack!"
The bed was shaking from the vigorous fucking that Zack was giving his mom to the point that it woke Brianna up from her slumber. Brianna sits up and said, "What in the world is going on here?"
Zack was too much into fucking his mom and didn't hear Brianna. Zoe was enjoying the hard fucking she was getting from her son, she didn't hear Brianna either. They were in their own world of sexual lust that nothing was going to interrupt them.
I said, from the chair, "Hi Brianna, my name is Ken, I'm Zoe's 'stepfather', not legally, but I'm married to her mother, and Zoe is being fucked by Zack, Zoe's son," as I chuckled.
Brianna looked at me with a 'shocked' expression and said, "What did you just say?!"
I said, "I think you heard right, Zoe is being fucked by her son, Zack."
