I woke up feeling pretty great, with some raging morning wood -- clearly I had more in the tank after accidentally cumming on my sister and her wife last night. Must have had some great dreams in the night. I check my phone, and I have a missed text in our "repro bros" chat, from about 10 minutes ago.
I open it, and it's a picture of Kate and Alena, both spread eagle, legs crossed over each other. The next text is from Kate saying "care to make a deposit? We have about 45 minutes before zoom calls start."
Needless to say I jumped out of bed, and when I opened the door I heard the unmistakable sounds of fucking coming from their room down the hallway. I headed over, and eased the door open slightly. I might have a bit of a voyeur kink, so it's fun to get these opportunities to look and listen.
I see Kate on top of Alena, missionary position, absolutely railing her with a strapless strap on. Alena was naked and Kate was wearing a very loose tank top, where you could see her tits from the side holes. I watch for a few minutes through a crack in the door, and hear a few snippets of their dirty talk. I heard Kate say "no, you're not allowed to cum. Not till you're filled with my brother's seed. You know you're our family's breeding slut." and Alena just breathing, moaning, begging.
At this point I fully walk in, and Kate turns around a bit to the sound. She smiles really broadly, and says "just warming her up for you, bro." She pulled out of Alena and climbed on top of her, making out with her, the strapless strap-on plugging her pussy.
I walk over, and find that Alena's a bit too far into the bed to get easy access, so I grab her thighs, pull her down so her pussy is almost hanging off of the edge of the bed, and pull her legs up and rest them on my shoulders. I rubbed my cock against her slit for a second to get it wet, and plunged in, which made her whisper "fuck oh fuck."
Since I'd pulled Alena slightly out from under Kate, the tip of the feeldoe was now at the level of Alena's tits. As I started fucking her, Kate scooched up slightly and laid the feeldoe against Alena's lips. Alena opened her mouth and started sucking on it (Kate's body was kind of blocking the view, but Kate asked Alena "you like the taste of your own juices, don't you?" and heard a muffled agreement). As Kate was thrusting in and out of Alena's mouth, I noticed something I had missed before - she had a butt plug with a vertical base tucked in between her cheeks - she was stuffed in both holes. I resisted the urge to reach out and touch it... but I really wanted to.
Alena's pussy felt amazing again. I think she always gets this wet. I was starting to feel so build up, but then Alena's legs started trembling a bit. Remembering how over-sensitive she got last night, I slowed down, more rocking my cock inside of her rather than thrusting in and out. Kate moved back down, her ass getting closer to me, and put her tits in Alena's face, before sliding down ever further to make out with her wife. I thought Alena had had enough of a breather, so I started picking up the pace again.
But Kate's ass was so close to me... I couldn't resist. She had said no pussy or tits play, but had never said anything about her ass. I wanted to make sure everything I did was okay, so I started by stroking her hips and the side of her ass as I was fucking Alena slowly. She responded with kind of a thrusting motion, which gave me a beautiful view of the feeldoe and butt plug coming in and out of view. I got a little bolder and started touching her ass cheek, cupping and squeezing it. She backed up further against me, I could see her pressed all the way against Alena's legs. As I was squeezing her cheek, I let my thumb slowly fall into the cleft, and she flexed her hips, spreading her cheeks and presenting herself to me even more.
So I finally took the leap. I put a thumb on her plug, and put some firm pressure on it, before relaxing and pushing it again.
"Yes..." she purred.
At this point I was getting really excited. I could feel the cum building in my balls, I was squeezing my sister's beautiful ass, thumb playing with her plug... I picked up the pace. I could feel Alena's legs shaking again, and knew it was going to be a race between the two of us...
And she won. Her legs trembled, her finger's dug into Alena's back, she started bucking. I kept completely still, hoping to avoid the over-sensitivity from last time. Her pussy gripped onto my cock so tight, if I had thrust for maybe fifteen more seconds I probably would have been filling her up, but I didn't want to risk it.
I asked her if she wanted me to pull out, and she said no, I just needed to give her a second. Then she suggested that maybe it was just too sexy with everything going on: Kate on top of her, herself getting bred, the brother-sister thing. She suggested Kate sit in the chair beside the bed, in order to reduce the stimulation level a little bit.
Kate gave her a long and sensual kiss, and said "of course, my love," climbed off her and got into the chair.
This was the first time I really saw Alena face-to-face while in her... and it was pretty hot. Seeing my crotch pushed all the way against her bush. Seeing her pant as she recovered... her hands pressed against her face as she tried to take slow, controlled breaths. Very hot.
But not nearly as hot as what Kate did. The upshot of her moving to that chair was that I had a full view of her, and Alena didn't. Kate sat on the chair and spread wide, with one leg resting on each arm rest. She pulled her feeldoe out, and spun it around, resting the long part against her slit.
Alena pulled her legs down from my chest, and hooked her heels behind me, pulling me in. I took this as the sign to get started again. I noticed Alena kept her eyes closed. I started thrusting, letting Alena's legs wrapped around me guide the pace.
As I started fucking Alena, Kate pushed the feeldoe's dildo side into her, matching the pace exactly. She was staring directly into my eyes. She hooked the thumb from her free hand into her tank top, pulling it to the side so one of her tits was out. She smiled at me. She bit her lip. She fucked herself harder, as I fucked Alena harder.
I was in heaven. I was getting really close. I said so out loud. Alena said "please, breed me."
Kate mouthed... well, this is the thing. I'm pretty sure she mouthed "fill her up" - but in my head, in that moment, my head read her lips as "fill me up." At this point I lost all control. I fucking just started pounding Alena, using my arms to move her as I fucked her. Kate had closed her eyes, but I was mesmerized by her panting, by the sight of the dildo going in and out of her pussy.
