Hope you liked the previous story called 'My Mom's new Boyfriend'; this is the follow up-story. There is no need to read the first MMBB story as everything relevant is explained at the start of this story, it is recommended that you read the first part though, because you (the reader) would have a better understanding of what's going on.
As before, think of Ziyi Zhang in the role of the mother since the character is based on her, thanks for the feedback and enjoy.
***
Hi, my name is Charles. To quickly recap what has gone on, my mom (her name is Cynthia) was dating this man named Joseph. I had no problem with that; in fact the interracial aspect of it was a bit of a turn-on for me (Mom being Chinese and Joseph being white.) Ever since moving as a child from Beijing to American, I remembered my mom as frigid and cold, after meeting Joseph and becoming his fiancée, she became a lot happier.
After a year of dating, Joseph moved in with us, then things started to get weird. Joseph would grab my mom's ass in front of me, show me lingerie he brought for her and have sex with my mom in the shower. I knew this was not normal family behaviour, and I haven't even mentioned the apex yet.
I saw my mom and Joseph have full-on sex, Joseph sometimes left the bedroom door open, just a little for 'air', but the real reason I think was to let me sneak a peek at what was going on. As loving a couple they were in public, they were so very different in the bedroom.
My mom was treated like Joseph's personal fuck toy; he rough-fucked her in the bedroom. Welts on her ass were visible when bare and the dirty talk in the bedroom boarded on the abusive. Joseph had his way with my mother, that's for sure.
I for one loved the set-up of loving and caring couple in public and dirty dominator and slave relationship in the bedroom. Also, as mean as Joseph was in the bedroom, he was as nice as a guy could be.
Joseph had taken to calling me 'son' at that point; I would have started calling him dad if I was, like, 12 years old. I had seen fleeting glimpses in the bedroom but nothing as solid as that pervious experience.
Two months had passed since I saw Joseph and my mom full-on fucking in the bedroom.
A month before the wedding, Joseph decided that we, as a family, would go to his vacation home. This vacation home was located near a beach in a private gated-area that the rich were only allowed in. Joseph said it was his family's private beach area, I didn't really get what he meant by that.
It was the day before the trip; I was packing my stuff and was walking by my mom and Joseph's bedroom. I overheard them talking...
"Not that one," he said in a firm tone.
"Would this one umm be not right?" asked my mom in her usual quiet accented voice.
"Well, you see, the one you picked is sort of out-of-style. The one I picked, suits you so much better," Joseph made some shuffling sounds, "Ah, this one!"
"Oh, don't you think this show too much?"
"That's how these places are," Said Joseph, "it's what you're meant to wear, and don't tell me you won't look good in that."
There was a brief pause before my mom responded, "I'll do it for you," She said sounding slightly concerned.
***
We got to the beach house at around midday. Mom was wearing this sexy floral summer dress, she was sitting up front in the car and I kept taking peeks of her sexy legs.
This private area had a holiday home located near some hills and a beach down below. That place was weirdly empty; it was odd that such a large area had so few people.
It was a hot summer's day, me and Joseph decided to go right to the beach when arriving, Mom went to the vacation home to put her bikini on.
Me and Joseph were lying down on the sand, we had some towels on the sandy floor and a massive umbrella protecting us from the sun; it was a hot day for sure.
I was wearing shorts that were baggy enough so that Mom and Joseph would not see the potential hard-on's I could have gotten from seeing some fine ladies (including Mom) in their bikinis.
"She is going to look so good, son," Said Joseph, "The one I picked out is just so hot."
Me and Joseph had not talked about what happened in the bedroom between him and mom, the possibility that he let me watch was never brought up either. Even so, he would still openly make comments about my mom's hotness. I would just nod politely to whatever he said.
After around ten minutes or so, we saw a woman walk towards us. As she got closer, I could tell who it was, it was Mom. She had this super-sexy black bikini-top on.
The bikini-top looked like two black triangles tied together by string, the bikini-top fitted very snugly on her. The top perfectly accentuated her tight tits. Underneath, she had on a white sarong.
She stood near us, she looked to be blushing. Joseph nudged along so that she could sit next to him; Joseph had a big smile on his face. Mom sat down next to Joseph.
Joseph went in close to whisper to my mom, "Come on baby, the beach houses are far away now and this beach is almost empty, you can take it off."
I heard what he said, Mom looked quite unsure. She looked around and then nervously untied her sarong. I took a quick peek over and saw Mom's sexy legs, creamy skin and skimpy bikini-bottom. I tried to take a peek at Mom's ass but since she was lying down, I could not see it from that angle.
After a few more minutes of relaxing, Joseph asked Mom to go do something, "Can you go over near the ocean; I'll be there in a second."
After he said that, my mom stood up and I saw her ass up-close. Slowly and with the sun coming down, I saw that Mom did not just have normal bikini-bottoms on, she was wearing a thong!
The thong line seemed to be made of dental floss; I could see her whole ass. Her ass looked so sexy and creamy soft, I wanted to just grab it right there. I saw some faint red-lines on her ass; those were the welts I mentioned earlier.
My mom turned her head to me and Joseph and flashed us an embarrassed smile, Joseph smiled confidently back at her, while my eyes were fixated on her ass. Joseph nudged me playfully to get me out of my trance.
"I know she's your mother," Joseph said in a hushed tone, "but damn!" He stared to laugh to himself, "how do you keep it down," he said with a snigger.
"I try to keep it down," I said half-jokingly.
After my mom walked off towards the ocean area, Joseph told me something, "You see that rock over there, why don't you go check it out. I think it has some interesting things on it."
Joseph looked serious; I went over to the large rock. It was an odd request, but odd seemed normal by then.