I was sprawled across the sofa in the living room in the early afternoon, playing a game app I'd downloaded on my phone, when my mom entered the room. She wore the running outfit I'd bought for her for her birthday a few days earlier: tiny bun-hugging shorts and a clingy bra top.
She looked like a goddess. I put my phone down.
"Randy," she said. "Let's go for a run."
It was the first time I had seen her in the outfit since she had modeled it on her birthday. Somehow, it looked even skimpier in daylight than it had in the evening on her birthday. The bra and shorts covered little, and mom's body was all exposed lean legs, torso, and shoulders. The shorts were tiny and utterly form-fitting. They sat low on her waist and stopped just below the bottom of her butt cheeks, so they showed a lot of skin on her torso and her legs. The bra top clung to her upper body with an air of desperation, the skimpy fabric seemingly not quite up to the task of corralling her ample breasts.
I was surprised to see her in it. Nothing had happened between mom and me for several days after I had dry-humped her on the sofa in her lacy white panties. I sensed mom was uncertain, maybe a little embarrassed, about what had happened between us. Both of us had been very busy, and we'd had no chance to talk about what had happened. Mom didn't seem to want to bring it up. After a few days, I'd started to wonder if it ever would happen again.
But suddenly, here she was: my incredibly hot mom, posing in front of me in a running outfit that concealed little more than a bikini would.
I wasn't going to say no to a running invitation with my mom wearing that outfit.
"Sure, mom," I said. "Think you can keep up with me?" I said it with a smart-ass grin.
"Probably not," she said. "But I'm not worried about it. If you run ahead of me you won't be able to see what you bought me for my birthday."
When she said it she had her hands on her waist and she shook her hips back and forth saucily three times.
"I can't argue with that," I said, laughing, as I rose from the sofa. "I'll be just a sec."
In a few minutes, I was back from my bedroom, having stripped off my clothes and put on my own running out: black shorts and a solid blue shirt, and running socks and shoes. I had my phone strapped to my arm as well, as I always did.
When I returned mom was stretching in the entry way with her hands against the wall, her ass thrust away from the wall and pointed directly toward me.
I had to rein in my reaction if I wanted to get her outside running in the outfit, but it wasn't easy to mask my reaction to it. My own running shorts had an inner lining, but that was it, so if I got excited looking at mom on our run I'd have no way to hide it. I felt my cock twitch as I feasted on the sight of my mom.
Down boy, I thought. "Let's go," I said out loud.
As we shut the front door behind us and got started I thought about what had been going on between us the past few days. Mom and I had started to settle into an odd rhythm. After something crazy and sexual happened, nothing would happen for a while -- a day, a couple of days. I think mom needed time to digest what we'd done together, and to come to terms with it.
As for me, I'd already come to terms with it. I wanted to see mom naked again, and I wanted to do more than that. But mom obviously was not ready for that; after I had dry-humped her and then stripped her naked, she had needed a few days to think about what had happened and to grow comfortable that I wasn't immediately going to push past the boundaries we had set.
Mom wanted to show off in front of me, even to come in front of me. But she wasn't ready to fuck me. Not yet.
Mom looked a little nervous leaving the front yard in her tiny running outfit. She had never gone running in an outfit so skimpy, and I could tell she felt uncertain about what she was doing.
"How do you feel?" I asked her, with a cheerful tone, trying to be supportive.
"A little funny, in this outfit," she said. "It's a nice day, though."
It was. Summer was over but it remained unseasonably warm, and with the sun beating down on us in a cloudless sky I knew mom wouldn't get cold despite the brevity of her running attire.
We barely left our front yard behind when we saw our elderly next-door-neighbor, Mr. Daniels. I think he was about 80. He and his wife had lived in the neighborhood for decades. They had conservative habits, and I wondered what my mom looked like to him. I was glad his wife wasn't in the front yard; I was sure she would cluck disapprovingly at what mom was wearing.
But Mr. Daniels, who was wearing a floppy hat and trimming a bush with a pair of hand shears, didn't react noticeably, other than to incline his head up a little as we passed and to stop his trimming, just for a second or two.
I could tell mom saw him.
"I think he's checking you out, mom," I said.
I'm not sure why I said it. I had conflicting feelings about what was going on. Mom had revealed herself as an exhibitionist to me. I enjoyed that side of her, and I felt a desire to tease it out of her further, to get her to show herself off. But I felt a little jealous, too. I wanted her to show off, but I felt a little funny about it at the same time.
"I know he's checking me out, Randy," mom said, as she jogged. "I'm a girl. Girls know when guys are checking them out."
We jogged slowly down the street to get warmed up. It was hot outside and I began sweating right away. I almost regretted putting a shirt on, but I'd chosen to take one because I wanted to be more dressed than mom. And I was. Mom was showing a lot more skin than I was. She looked fantastic.
We reached the end of the street, where the neighborhood ended and the hills started. I led us to a trail that led up and away from the neighborhood, in a different direction from the one mom and I had taken on our first run together. I let mom go ahead so I could watch her running from behind. I think she knew what I was doing.
We didn't talk a lot on the run up the hill. We concentrated on running, and I concentrated on the sight of mom's butt in the tight shorts. The hill wasn't steep, but even so we were both sweating. I liked seeing mom's exposed body covered in a layer of sweat. Only a few trees dotted the hillside around us, so we were exposed to the sun. Her body shone in the mid-day glare.
We topped the hill and then jogged down to a low area that flattened and opened up and was covered with more trees. Then I led mom on a side trail.
"Where are we going?" she asked.
"A pretty area I know," I said.
We rounded a bend, and a small lake opened up before us. It wasn't large, probably covering no more than a few acres, but it was pretty, with an irregular shore line surrounded by trees, and a small rocky island in the middle of it that blocked the view to the other side. The lake and its surroundings were maintained as a nature preserve.
I led mom on a small rocky path around the lake to the far shore. The tree cover lay denser on this side of the lake. I decided to stop here. I pulled a bottle of water I'd strapped to my side and handed it to mom, and after she took it I unstrapped the phone from my arm. I wanted to get some photos of mom. I also wanted to get a sense of how comfortable she was posing for me again.
Mom rolled her eyes when I asked her if I could take some photos, but she complied. I took a couple of her sitting on a rock under a tree with the lake in the background. Then I wanted to take something a little sexier.
"Mom, put your hands back on the rock and push your chest out, and put one leg up on the rock and the other on the ground," I instructed her. In this position her breasts would strain against the fabric of the bra, and the black fabric of the shorts would be stretched tightly and visibly between her legs as well. I got the sense mom was just a little turned on, because I could see her nipples against the fabric and just a hint of a camel toe in the shorts.
"How do you feel, mom?" I asked.
"About what?" she asked me back.
"About what's happened," I said. "Between us."