Recap: After Carla and Tom first met whilst out running on the waterfront, their relationship had grown and they were spending more time at each other's houses.
Carla and Tom had come back from their run and caught her flatmate Kate and Pete Kate's boyfriend making love in the lounge. This had led to Carla and Tom getting horny at the sight and sound of them and then getting Kate and Pete catching Carla and Tom making love in the kitchen.
In turn, this led to us, in their respective couples, making love in the kitchen.
We were in our couples, still naked. Looking at the naked, post sex Carla and Kate, my cock was rock hard again. Pete, on the other hand, seemed subdued.
Just as we were about to start cooking, Pete's phone rang, and he quickly picked up and walked to the hall.
Carla, her pussy still dripping my cum, went off to the toilet to clean up. I decided to follow her as I needed to clean up too. I asked Carla if she had Kate had ever got up to anything with Kate and she replied that while they were open about goings on in relationships, they had never kissed or done anything physical with each other, even when tipsy.
When we got out of the bathroom and into the hall, the still naked Kate was standing with Pete had with a glum look on her face, "Pete just got called into work. I'm going to help him get changed," she said.
As Kate and Pete departed for the bedroom, Carla called out, "We're staying naked."
Carla leaned into my back, so I put my hands under her breasts and held her, resulting in my cock hardening further and pressing against her bottom.
Carla said, "Painful," and used her hand to move my cock between her legs, then hummed as my cock touched the edge of her pussy lips.
Just then, a clothed Pete and still naked Kate exited the bedroom. Kate, still naked, kissed a now-clothed Pete on the lips goodbye. Pete kissed Kate but quickly withdrew, saying "Bye guys, have a good evening."
Kate's mood was even greyer now than before. Carla said to Kate, "Come here," and opened her arms despite me behind her.
The naked girls embraced, which caused my cock to grow slightly and push harder on Carla's pussy lips. Carla murmured slightly with this pressure and Kate looked down and said, "Wow, he's certainly big!"
The girls unlocked and Carla said, "Shame about Pete going. We were just getting in the mood."
Kate replied, "He is good, but limited. Cowgirl is the furthest we've got. Look at him: " as she looked at my dick between Carla's legs, "Pete would be embarrassed here!".
Carla said, "I thought you enjoyed being with Pete?"
Kate replied, "I do, Tom is always down whereas Pete is often down."
I was embarrassed at this and moved my hands up under Carla's tits to hold her tighter, which forced my cock up her pussy lips slightly.
Carla was surprised at Kate's comment and said, "I've never mentioned our activities, have I?"
Kate said, "Your FitTrak auto posts to FriendChat. When I log onto FriendChat, it comes up in my feed. I saw that when you were out on the waterfront, your speed stopped at the toilets, but your heart rate shot up. Then at Ladies Cove, Carlae happened: you stopped: HR shot up. And at Peninsula Park, you stopped mid-way round the coast, but your HR shot up. You may have been eating something there, but it wasn't biscuits," she concluded with a sly smile and rubbed her pussy.
Carla and I were embarrassed, but I was getting harder at the talk and of seeing Kate finger herself, so I moved my cock around Carla's pussy gently which elicited a gentle murmur from her. Carla, in turn, rubbed her nipples with her hands which I could see over her shoulders, making me harder still. Kate, looking at us, rubbed her pussy making it wetter and the lips wider apart.
I was wondering what was going to happen when Carla said, "Dinner, but stay as is?"
Kate thought for a minute and said, "OK: you lead the cooking."
I was wondering what else Carla might be leading to as both girls were now very horny.
We walked back into the kitchen and Carla said, "I'll do the beans, you [looking at Kate] the rice?".
Carla got out the beans and leaned over the basin to top and tail the beans, exposing her pussy. I stood behind Carla and put my cock between her legs to rub her pussy whilst helping her with the beans.
Kate was at the sink next to us, cleaning out the rice.
Carla said, "Tom, can you get the herbs from the drawer please?"
As I disengaged from Carla, Kate turned around too, and my hard cock briefly brushed Kate's pussy. Kate let out an "Oooh" as the brush finished. I was cringing now.
Carla said to Kate, "You, OK?"
Kate said, "That was weird having Tom brush me. I never get that feeling with Pete," and looked at my cock smiling.
Carla said to Kate, "Would you like to see if you get it again?" and looked at me for approval.
I nodded and Kate smiled. Carla said, "I'll guide?" Kate and I nodded.
Kate and I stood just far enough apart so my cock wasn't touching Kate's pussy, but her breasts were on my chest. My balls were tightening as I was looking at Kate's tits and open pussy. Carla came from behind me with her chest full onto my back, head on my shoulders and grabbed my cock. She used her hand to guide my cock to Kate's open pussy, just touching the wet lips briefly before moving my cock away. Kate purred again.
Carla moved my cock onto Kate again, but for a bit longer and around the wetness more. Kate, purred longer this time.