The almost scaldingly hot water felt amazing on my sore muscles as I eased myself into the hot tub. I closed my eyes, and rested, until about five minutes later I heard the door to the house open. Kate was back to her usual bubbly self, hair wrapped in a towel while she shrugged off her robe to join me in the water.
"Fuck," she said, standing on the first step, "Alena keeps this water so hot."
"I like it," I said mildly, watching her slowly dip herself into the water, knees, thighs, hips, until her nipples finally disappeared under the bubbles.
There's nothing quite like a hot tub on a cold, crisp winter day. The contrast between the feeling of your skin outside of it and inside of it. Kate kept not being able to stand the heat, so would pull herself back out of the water, only to get covered in goosebumps, her nipples getting hard and standing out like rubber erasers, before she would have to descend back into the water. I enjoyed the show, the constant hide-expose as I got to see more and less of her, but that was about the only sexuality we had. We chatted as the sun set, making it dark even though it was still the afternoon.
Once their automatic outdoor lights kicked on, Alena opened the door to call us inside.
"Most. Boring. Incestuous. Siblings. Ever." She chided us as we came back in. "I was watching from the window for the past half hour sure I was going to get some kind of a show, but you guys kept on just chatting. Ugh."
"The real show was in the shower," Alena teased her, "And my brother made a decision that needs some ratification. He says I'm to be anal only for the rest of the day..."
"Ratified"
"Well in that case," Kate said, opening her towel and bending over the counter, "I'm also going to be *always* anal today..." and she parted her cheeks, showing a plug with a long black bar sticking out of her ass, and I couldn't help but notice, red, inflamed, wet pussy lips under it. Maybe that hot tub adventure had been more sexual than Alena or I had thought.
Kate then snapped up, pulled on her robe, and got putting out some food - a charcuterie board and some light snacks for dinner, and I excused myself to shower.
When I got back downstairs, I was only mildly surprised to see Kate back in the nude.
"I made another rule," Alena told me, seeing my eyes on my sister. "With how much activity we've both had, we're going to need max stimulation to do the other two inseminations we wanted to get to today. So no more clothes for her."
"Also," Kate added practically, her breasts swaying as she made a pert little bounce, "to give you some recovery time before bed, the next deposit should be about now. Plus, sex before dinner is better than the other way around." She immediately got to her knees, pulled my cock out, and started stroking it.
"Sorry," Alena said, "I told Kate my cunt needs a little break, so most of the work is on her this time. We made a little plan, I hope you're happy to play along." I certainly was at the moment, watching my older sister's hand working at my growing cock. She licked the tip gently, swirling her tongue around my head, then pursed her lips and slid the whole thing into her mouth, holding her lips against the base for a second. She let out a small cough as she withdrew, her eyes watering but wide with pride.
"I've been practicing"
As she took my cock back into her mouth, I noticed Alena had moved away - gotten undressed, and was laying on the dining room table, her ass right at the edge, her feet resting on chair with her knees spread wide. My eyes snapped back to my sister as she deep-throated me again, and I put my hand lightly on her head, feeling her throat around my cock. She withdrew, and, taking me by the hand, led me to the dining room table, positioning me in the gap between the two chairs. She pushed me forward with a firm hand on my ass, until my cock was hovering a tiny bit from her wife's pussy, then went behind me, and started stroking me again from behind.
I could feel her breasts pressed into me, and the warmth of her body, the slight involuntary thrusts as she stroked my cock. I edged forward involuntarily, the head of my cock now resting on Alena's wet entrance, her finger still dancing over her clit. Alena's eyes were fixed on her phone.
"What are you watching?" I couldn't help but ask, as my sister pumped my cock into her wife's wet slit.
"Incest porn," Alena responded distractedly.
"Really?" I chuckled, gesturing at what was happening around her.
"Lesbian incest porn," Alena clarified, breathing a little bit harder.
What was happening was feeling very good, but my cock was getting a bit sensitive. I asked Kate if we could grab a bit of lube.
"Alena, can we lube up?" she asked, innocently, her hand pausing on my cock for a moment. Alena nodded, and Kate adjusted her hand position slightly, before pushing me forward with her whole body, and sliding my cock in Alena's wet slit. The feeling of warmth and wetness was amazing. I let out a moan, and Kate took me firmly and pulled me back, but not as far out as I had been last time - my head was now decidedly inside of Alena.
Kate slowly built up her hand movements, and now with this added wetness and stimulation I did feel the cum start to build inside of me. Alena's hand started moving faster, and she started twitching little bits - and I noticed her eyes drifted from the screen more and more.
"Never-mind," she breathed, finally putting the phone down beside her and losing the pretense, "this show is hotter."
I don't know what it was, but her eyes on me pushed me closer and closer to cumming. She looked hungry. For my cum. My sister's wife, the dyke, the previously gold star lesbian, was hungry for my cum. Alena pushed me in closer, now half my cock was inside of her wife, and her hand was barely able to move between us. Alena took her hand away, as each little jerk of Kate's hand was rubbing against Alena's clit. I closed my eyes and put my head back, and Kate moaned about how hot it was, seeing me breed her wife.
But then she said in a whisper, that was definitely loud enough for Alena to hear: