Mom and Son at a Hot Tub Party

As usual, you do NOT expect something like this to happen. But, here we are, driving home not knowing what to say after what just happened--glancing over at Mom to gauge any reaction. She seemed normal, like nothing happened. What will happen when we get home I wondered. Will she be mad? Will she pretend it didn't happen? I should explain.

Mom and I just moved so she could be near me while I was going to college. She thought it would be better for me than in a dorm. She divorced Dad years ago for cheating and works from home so moving wasn't a problem. I do streaming and that would have been hard to do in a dorm so she suggested just getting a house there.

Anyway, we were on the way to orientation and Mom said "I think I should pretend to be your girlfriend so no one will make any remarks that you are with your Mother. I look younger than I am. Plus I'll be able to look around with you without looking like an overbearing parent."

Thinking about it for a minute before answering her. There is no way anyone would think she was my Mom. She looks way younger than 37. Very fit with long reddish brown hair and nice C-cup boobs. Yes, she is hot I'll admit but I never saw her in a sexual way before... well maybe not till this past year anyway. Once I turned 18, I started seeing her differently. Not like I thought anything would ever happen. That would never cross her mind. "Sure, no one knows us here."

"Great," Mom said. "Just tell people that we met last year while you traveled to Japan before going to school. Oh and if anyone asks, tell them I'm 24"

"Sure thing, Mom," I said with still about a 10-minute drive left.

"Now remember Max, call me Liz. I don't want any slip-ups." Mom said as I pulled into the parking lot.

"Of course Mom," Nodding my head. "I just hope no one starts hitting on you. I might have to HIT them to the floor."

"Ha," Was her response. "Let's not get kicked out before you even get to start. You took Karate since you were 8, they wouldn't know what hit them If they tried. Now, let's get going." As we were walking, she held my hand and was partially leaning on me. I have to admit, I wasn't hating this.

Orientation was boring like I knew it would be. A lot of guys and some girls kept looking and my Mom. When we were walking around to get my bearings where everything was, a guy tried to talk to her.

Then something happened I wasn't prepared for. She kissed me right on the lips and before I could register what had happened she said, "Sorry dude, but I'm with my boyfriend." And we just continued to walk. "Sorry about that. Guys like that won't take no for an answer unless you show them." Mom whispered to me.

Before I could think my lips said, "It's ok, I liked it." Damn you lips. I blushed.

"Oh, you DID did you?" She said with a smirk. "Well, we have to keep up appearances you know. Might happen a few times so be prepared." I was stunned. Not only did she kiss me, but she said it might happen more. I have to be honest, I got a little excited. She ended up kissing me 3 more times. The last one lingered more than the others.

We finished our walk about the campus not really meeting anyone that was friend worthy. I was hoping to get to know a few people before starting next week. On our way out the door, we saw a bulletin board that had fliers for local parties before school started.

"Hey, let's look and see if any of these sound interesting to you." Mom said as she was browsing the board. Looking at the board, none stood out to me... shame. Mom pointed at a flier and said, "How about this one?"

"A hot tub party? Really? I replied in surprise.

"The best way to get to know someone is to see them half naked. Plus you would get to see your girlfriend in a bikini." She said with the same smirk from earlier. She has to be messing with me.

"Yeah right, you have never worn a bikini before. So I know you are messing with me." It's true. She has always worn a one-piece, even with her fit body.

"Well, I might just surprise you." Again, she said with that smirk.

Ok, time to call her bluff. "Fine, let's go home and get ready then," I said, expecting her to back out. But again, she just smirked

"Yes let's. We haven't fully unpacked yet and I'll have to find it, We have 2 hours till it starts. Let's go baby." With that, she kissed me again even though no one was around, and grabbed my hand practically dragging me to the car. Maybe she isn't bluffing?

When we got home, she ran inside and started looking through the boxes immediately. We had just moved here last week so not everything was unpacked yet. I started to wonder what was going on. Is Mom just doing this to help me get some friends before school starts? Or is something else going on? Was she really being flirty with me? My mind raced through all these thoughts. I must just be overthinking it... I sighed.

"Mom! Should we change here or when we get there?"

"We change here but put normal clothes on. So we can just take them off without needing to go somewhere to change. You can just put a shirt on since trunks are just shorts."

"What if I have a speedo?"

"You don't have one. You have used the same black and blue swim trunks since you were 15."

"They are getting tight though."

"Yeah, they are. Didn't leave much to the imagination. You sure have grown. But you never got new ones. Maybe after today, we should get you some new ones."

What? Did she.... just admit to looking at my dick?

"Ah ha! Found them!" She yelled from her room. "Hurry and get changed, I want us to get there around when it starts."

I yelled back, "Ok!" I get ready and wait for her by the door.

Mom came around the corner and said, "Yeah, we need to get you new trunks tomorrow, the girls there are going to go nuts. But, you are with me so they can't have you." Again with that smirk. She had on a dark blue shirt and shorts. I couldn't tell if she was wearing a bikini or not. She's doing this on purpose to tease me, I know there is just a one-piece under there. "Come on let's go." Practically pushing me out the door.

We arrived there about 20 min after it started. GPS had me take a wrong turn... sigh. looks like people have been there for a while though, so it didn't matter. We had to park down the street. Hot tub party was an understatement. I was just thinking, a pool with a hot tub. No, there was a pool, but there were about 10 hot tubs in the back we could see walking up to this house.

"Welcome!" Said a guy by the gate to the backyard. "Hey, I'm John. What's the password?" Password? Shit, I didn't actually look at the flier, only what Mom told me.

"Soak all night." Mom said without missing a beat.

"Great! We have to make sure they saw the flier. Which one is the student?" John asked.

"I am, my name is Max. This is my girlfriend, Liz." I said while Mom held onto me tighter, smiling.

"Nice to meet you, Max and Liz. You may enter now but, there is only one rule. Couples stay together and when in the hot tubs, the girlfriend must sit on the boyfriend's lap. It leaves more room for other people and shows you who's taken. We keep it clean here. Got it?" John said. We both nodded. "Good. You can change in the house right in this door here, (pointing to the door on the other side of the gate) or right here if you have it on underneath already. Your clothes will be safe. As I said, we keep it clean here." He said.

Then it happened, Mom said, "Okay." Then started to take off her shirt. I watched as she pulled it over her head, wearing a dark blue bikini top. Throwing it to the ground. I was staring at her boobs as she went to pull down her shorts. "Come on, baby. Take that shirt off and let's go." Mom said as she kicked her shorts over to where she threw her shirt. I took off my shirt and threw it where her clothes were. We took our shoes off and again, she grabbed my hand and started to drag me towards a hot tub. I was looking at her in awe, and I was starting to get hard. She is so fucking hot.

"Have fun. I'll take care of your belongings, so don't worry." I heard John say as we were walking away.

"Here's an empty seat baby. Get in so I can sit on you." I don't think she was all that comfortable being so exposed in front of people. She wanted to be under the water.

I started to get in saying, "Hi, I'm Max and this is my girlfriend Liz," to the other hot tubbers there. They were all saying hi and introducing themselves as my Mom got in and sat on my lap. I thought she was going to sit sideways on me. She did NOT. She sat straight on, right on my semi-hard dick. Her barely covered pussy, in this thong bikini bottom, WAS ON MY DICK! I screamed in my head. Sure I had trunks on, but they were old and thin. Needless to say, I'm fully hard now. She had to have felt it. I tried my best to ignore it and talk to the people around me so they didn't think anything was going on under the water. It worked somewhat. To be the boyfriend, I wrapped my right arm around her stomach and put my left hand on her upper leg. She looked back at me and did the same smirk as before. She had her hands under my legs to help her not float away. We were like this for a long time, sitting like this while talking to everyone. people coming and going. We stayed put. Luckily, there were a few people I enjoyed talking to. Some were even in a few classes I had.

Then something happened. I wasn't sure at first. I thought she might have just been readjusting herself on my lap. But she pushed down on my dick. Not just once or twice, she kept doing it. And started to rock her hips back and forth under the water. She didn't even make it seem like she was doing anything. Her upper body looked like nothing was happening. The water was just above Mom's boobs. It felt really good.

"You guys have been here for like an hour and I haven't seen you kiss." Someone said.

"Oh, we were just enjoying talking to everyone." Mom said as she turned to me and kissed me. With tongue this time. I was making out with my Mother. I held her tight to me.

"I was starting to think he paid her, but you can't fake that passion." The same person said. Rick? I think it was.

"I told you," said the guy's girlfriend. "Stop being nosy. They just didn't want to show off." We stopped our kiss, she looked at me, smirked, and booped my nose. Then went right back to talking away and still grinding on my dick. Was she doing it harder now? My heart is pounding.

Mom suddenly froze, and then it hit me why and I froze too. Uh oh.... did my trunks just rip? They were old and tight. She was grinding so hard it ripped where my dick was. Now it was nestled up against her bikini-covered pussy. It was so warm. Probably wet too, but couldn't tell because of the water. The way she froze, I don't think she meant for it to go this far. I think she just wanted to have some fun and tease me a little.

"You guys ok?" Said a girl. I have no idea who, my brain didn't function right now.

"Oh, yeah. We are fine but, his trunks just ripped open in the front and I have no idea what to do about it." Mom said to my surprise.

"There's one place you could put it." Said the same girl.

"Oh, you are so bad, Krystal. Don't make them feel awkward about it." Said another girl.

Mom followed up by saying, "We have never done it around people before (or ever), I wouldn't feel right about it."

"It's under the water, no one would see with all these water jets going. But, it's up to you. You wouldn't be the first couple to do that here." Krystal said seemingly trying to get it to happen. Not that it would happen, she was just teasing me. I'm sure any minute now she will want to go home.

That didn't happen. She relaxed and started talking again. After about 10 minutes she started grinding on my dick again. This time it was different, there was only a thin bikini bottom between us now. I don't think I have ever been harder in my life. I'm 7 inches on a good day, but I could have been 8 at that moment. I moved my left hand to her inner thigh. If she was going to tease me, I was going to tease her. She started breathing harder. I moved my hand closer and closer to Mom's pussy, until I was touching it. Wait, her bare pussy? All her grinding must have moved the material the moment I went to touch it. She let out a tiny moan.

Krystal noticed but didn't say anything. She was looking right at Mom, almost like she was willing her to go further. Mom started to get up. I knew she wouldn't go further, it was time to go home now. Before I could start saying bye to everyone. Mom reached down between us, grabbed my dick, and lowered her pussy right onto it. All... the... way... down. She settled and started talking again like nothing was happening. My dick is inside my Mother!!! I couldn't believe it. How did this happen? And around people, we just met. I didn't want to move. Not that I didn't want to, I didn't want to cum inside of her. I know she hasn't been on birth control since the divorce and she's 37, she could still get pregnant.

Then she started to move. I didn't want to say or do anything. I must be dreaming. There is no fucking way that my Mother is fucking me right now. She didn't say anything either. I grabbed both her hands and held her close to me. She stopped talking and rested against me, put her head on my shoulder, and closed her eyes. I rested my head on the pillow behind me and closed my eyes as well. To anyone else, we were just a tired couple resting. Underneath the water, Mom kept slowly gyrating her hips. It felt so good. I started to thrust up slightly, it made her whimper lightly. Feeling I wouldn't last much longer, I squeezed her hands as a warning. She opened her eyes and looked right at me. She understood what was going to happen. I didn't know what she would do at this point. Again, she just smirked and kissed me deeply and I returned it completely. Then it happened, I came inside my Mother. It was a hard cum, I did literally have a hard-on for about an hour. I held her even tighter and I felt her start to shake. She came while I was cumming inside of her. She shook like she was cold. It lasted for about a minute. She sighed a snuggled up into my neck, giving me little kisses here and there.

"I think it's time we get going," I said aloud to the group. Mom's eyes went wide. She probably didn't know how we were going to get out of here without people knowing what we did. I yelled over to John who stopped letting people in about 30 minutes ago, "Hey, can we get 2 towels over here? My girl is kinda cold and I want her to be wrapped up as soon as she is out of the water."

"Sure thing, bud." He said. Bringing towels and our stuff with him.

"Thanks, John." Taking one of the towels to get it ready for Mom.

"No problem Max, you get her warm and home safe. You are welcome to come back anytime I do this party. No password needed." He replied. I nodded at him as I helped Mom out of the hot tub. My dick slid out of her before we fully got out of the water.

"Nice dick!" A girl from one of the other hot tubs yelled as I got out.

Krystal yelled back, "Shut up hoe, he's clearly taken." Everyone in this hot tub burst out laughing at that. I smirked. I wrapped the other towel around me, grabbed our stuff, got us dressed, and helped Mom to the car. She must have cum a lot harder than she let on, she was very wobbly. I never really got to see her in the bikini. Oh well, this was way better.

Now, here we are, in the car on our way home. Mom was silent, I expected it was from her orgasm. Or did it just hit her what happened and trying to process it? Either way, I pulled us into the garage and helped her out of the car. Not a word was spoken since we left the party, but she still held onto me tightly while I was helping her. Helping her up the stairs and into her room. She finally spoke as I sat her on the bed.

"So, if I am going to be your girlfriend... we should probably sleep in the same bed." There was that smirk again.