Stella gets used by someone

The three of us entered the main hall and out found our way towards the ballots. Stella and I walked side by side, as my right arm groped her ass, eliciting an occasional soft moan. Anna walked next to us, with a look of amazement and glee, as she excitedly looked at all the different cosplays. It was truly incredible how many people showed up in their beautiful and unique cosplays. Thankfully for me, most of the female cosplayers showed a lot of bare skin. The nudity was certainly my favorite part of the convention.

We approached the ballot and I wrote my vote down on a little piece of paper and put it in the box. Anna then wrote her vote, making sure to dot the “i” with a little heart. Lastly, Stella wrote her vote, but as she was bending over to drop it in the box, a man came from behind her and swiftly thrust himself into her. She nearly lost her balance as the man continued at an even faster pace, but she managed to catch herself and let out a loud combination of a yelp and a moan. I was pretty taken aback at first before remembering that Stella is free-use.

“Hey,” the man turned to me. “My name’s Rob, sorry to interrupt.”

“No problem, man” I replied, my eyes fixed on Stella’s pussy as Rob’s dick pushed in and out of it. “She’s free-use.”

“Nice,” he said. “I won’t be too long, I just got a little pent up looking at all these hotties”

“I totally get it. Take your time.”

I watched there for a minute longer before i realized that my dick had gotten painfully hard. I turned around and saw my sister a few feet behind me on a bench, also watching Stella get railed by the man. I noticed she also seemed a little excited by it as she squirmed around a little and rubbed her crotch through her shorts.

I decided to sit down beside her, a little awkwardly since my boner was straining to get out of my pants. I left about a foot of space between us as I quickly pulled my cock out and started stroking it. Possibly emboldened by my public masturbation, Anna also pulled her shorts down about half way, and started rubbing a lot more fervently. I didn’t want to be too obvious, but I managed to sneak a few glances at her pussy as she slipped a finger inside. Although she had just seen me fuck Stella, this was my first time seeing her naked, and it was kinda thrilling. I jerked off a lot faster, and for the first time she made eye contact with me.

“You’re lucky, you know?” She said to me as she looked back towards Stella and Rob.

“What do you mean?” I said while Stella loudly moaned over our conversation from the other side of the room.

“Stella took an interest in you specifically. She’s free-use, so she could have any guy she wanted, but she chose to hang out with you today.”

I felt a little embarrassed that I hadn’t really thought of that until now. It also made me much hornier.

“I guess that’s true. She is pretty great”

“I just wanted to let you know,” Anna said breathily as she groped her tits with her other hand, “that you’re great, and you and Stella deserve each other. I know you can get a little self-conscious at times”

“You’re right, thanks for that Anna” I said, and I felt my orgasm approaching.

As Rob increased his pace in Stella, her moans got even loader and we got even hornier. Anna got even breathier and I could tell she was really into it, but what I wasn’t expecting was for her to scooch closer to me on the bench. A few seconds later, she moved over again, and our skin was touching. The warmth of our bodies spread to each other as our thighs and sides rubbed against each other, and Anna rested her head on my shoulder. Anna and I had always been close, but never like this. I felt each breath she took, and heard each moan as if they were directly into my ear. My strokes became synchronized with her thrusts into her pussy, and it felt like we were one person.

From across the room, we heard Stella let out her loader moan yet, and as Rob pulled away, we saw his creampie leaking out of her. I felt Anna’s muscles tensing up and I could tell she was close. I was too. I turned my head towards her and she looked up at me, making eye contact.

“Thanks for what you said to me,” I said earnestly. “It made me feel a lot better.”

Something about this seemed to really set her over the edge and her whole body writhed as she started cumming. I felt her tightly squeeze my arm as she uncontrollably squirted on the ground in front of her and all over her shorts. As I continued gazing into her eyes, I knew that I would finish shortly after.

“Fuck, that was great” I said as she recovered from her orgasm.

“Cum on my face,” she said, somewhat desperately.

“What?” I said, this was a line we had never crossed, although I guess there had been a few of those recently.

“Please, I need it” she moaned

I complied and got up, feeling like I could explode at any minute. After a few more strokes I was ready.

“Fuck, Anna! Here it comes!”

The first rope splattered all over her eyelids and nose. After that, she opened her mouth a bit and stuck her tongue out catching some in her mouth. As it died down, I looked at the result: my gorgeous sister with my cum drying all over her face and dripping out of her mouth.

I sat back down next to her and we sat in silence for a few moments, catching our breath as Stella walked back over to us.

“Woah,” Stella said as she noticed the load drying on Anna’s face. “Who did that?”

Without words, Anna pointed over at me. After all that, the only response I could muster was a slight nod.

“Nice job man,” she playfully slapped me on the arm, “I didn’t think you had it in you.”

She then turned to Anna and said, “you should really think about signing the free-use papers. I think you’d really enjoy it.”

“Maybe,” Anna said, and smirked slightly at me.

“Come on guys,” I stood up, “let’s go look around a bit more before this all closes.” I mostly just said this so that I wouldn’t fall asleep, since blowing two loads in the last hour had kinda worn me out. Stella and Anna got up excitedly and started gossiping about Rob and other girly topics, and I was thinking about how lucky my life was.