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This story is unapologetically incest-focused. It starts slowly (for me) and builds into incest with the intent to breed. If you can't handle this type of thing, I have other stories you might like instead. (You may, however, want to start reading the story categories and tags a bit more closely before you click ...)
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My sister, Julie, and her partner, Katie, were coming over to my apartment.
Julie had told me that she and Katie had something super serious that they wanted to talk to me about. I had offered to fix them dinner.
I was in the middle of dumping the spaghetti noodles from the pan, into the colander, when the doorbell rang.
"Come in!" I hollered.
The door opened. My sister was holding it. Her girlfriend slipped through the opening and shot me a friendly wave.
I moaned as the movement of her arm caused her generous chest to jiggle. They HAD to be D-cups at least - maybe double-D's. Her silky dark brown hair was bobbed off at her ears. I liked her better with long hair - but this cut showed off her slender neck and made her face look a little fuller. She had a classic hourglass figure that made me think of a fertility goddess totem every time I saw her. I had always thought brown eyes denoted intelligence as well as compassion and my sister's partner had both of these in abundance.
I didn't think it was probably a good idea to admit to my sibling (two years older than me - the same age as Katie - both of them nearing graduation from college) that I had pictured her girlfriend in my mind more than once as I'd masturbated before going to sleep at night.
Julie came in, shut the door behind her, and wrapped her arms around her lover.
My sister - flaxen hair shaved at the sides and cut into a feathered pixie - was nearly flat-chested and had the figure of a beanpole - slender, toned, and largely devoid of curves.
Katie turned her head and offered my sister a kiss. Julie pinched a nipple as their lips met and both of her partner's breasts suddenly had sharp points protruding from the thin fabric that contained those mouth-watering mammaries.
"It smells good, little bro," my sister said.
Katie's focus moved from my sister's face to mine. As the two women's attention settled onto my eyes, I was sure that they knew I was staring at Katie's stiff nipples. Neither of them said a word.
Katie shoved my sister towards a chair.
"Sit," she ordered. "I'll help Alex."
"I don't really need any ...," I began. "Oh!"
I had just dumped the noodles from the colander back into the hot pan. I was still holding the pot in my left hand and the colander in my right. Katie stepped into my personal space, facing me.
"You're not seeing anyone right now, right?" she whispered seductively.
Her arms went around my ribs. She pulled my body against hers and I swear I could feel her stiff nipples pressing into my flesh.
"Katie ...," my sister and I both growled at the same time.
My sister's voice sounded frustrated; mine sounded penitent. Katie's giggle was joyful, naughty, and infectious.
Her lips found mine and I stared around Katie's head into my sister's eyes as her life-partner gave me a kiss that was longer than socially acceptable - and far more serious than a sister-in-law should share with her partner's brother.
I felt a hand grope my crotch and I realized her right arm was no longer wrapped around my body.
"Katie!" Julie growled again.
The kiss ended and the brunette released me, and she retreated a half step.
I found myself breathing hurriedly - to try to make up for the breaths that I had missed while our lips had been pressed against one another.
"Are you sure I can't do anything for - or to - you?" the brunette asked.
"Fuck, Katie ...," I moaned.
"We'll get to that," she promised huskily.
"Come, sit, whore," my sister told her.
"Yes, dear," she replied sweetly.
She gave me a sexy wink, turned, and headed for her chair.
I really, really needed to adjust the tent in the front of my pants - but there was nothing for it. I glanced down to see how obvious the bulge was and caught my sister's eyes returning to mine - after she'd just looked at the same thing.
I hadn't initiated the contact between her lover and me but, somehow, I felt like I should be apologizing. Before I could do that, however, my sister cleared her throat.
"Thanks for fixing dinner," Julie said. "You didn't have to do that."
"I grabbed a bottle of wine," I told her. "Otherwise, there's a two-liter of cola in the fridge. I wasn't sure which you two would prefer."
"Obviously," my sister said (giving her lover the side-eye), "Katie doesn't need any liquid courage. I'll get us each a glass of soda."
"Cool," I replied. "Keep the bottle out. I'm a little thirsty."
My sister went to get the drinks as I started bringing sauce, noodles, breadsticks, and salads to the table.
"How's the job-hunt going?" I asked Katie.
"Good," she replied. "I've got two solid leads. As you know, though, your sister and I will both have education certificates when we graduate as well - so the backup plan is to teach at a high school somewhere."
"Your skills would be wasted there," I told her.
"Thanks, handsome," she replied, giving me a smile. "Julie's would be too. I'd much rather find something for each of us that uses our skills a little more directly."
"I think you'll be fine," I said, "but I'm obviously very curious about what you find the marketplace to be like - especially when I'll be hitting that same job-market in a couple years."
"Your focus on networking should give you an advantage," she replied. "I'm just a web developer."
I waved away her attempt at trying to minimize her skills.
"Lots of places need females in tech jobs - so you'll have a leg up on me there," I replied.
"Obviously, Jules and I would like to find positions at the same place - her doing graphic design and me doing web development," she commented. "Only one of the places that's looking at me right now has a graphic arts department."
I nodded at her.
Julie and I dropped into our chairs at about the same time. She set the bottle of soda at the edge of the table, between us, and I started passing the basket of breadsticks around.
