Give her what she wants

Tandi had me boxed in, her arms on either side of me. She grinded herself on my leg,her cute soft moans getting lost in the noise of the two girls next to us.

Candi was on top of Sam, fingers playing with and teasing her pussy. Making her moan and whimper. Whispering Candi's name, begging her not to stop.

Maybe that should have killed the mood for me. Hearing your sister getting fucked right next to you was probably a turn off for most guys, but... but this was my first time doing anything like this. My first time ever being with a girl. I could tune them out, and focus only on this.

I placed my hand on Tandi's waist. Feeling her cool skin, the texture of it, the realness.

"I haven't.... I'm not..."

"Shhhh don't worry." Tandi gripped my hand and moved it down her body. Letting my fingers run over her bush and rest on top of her pussy. "You know how to take direction, right?"

I nodded, swallowing the lump in my throat. She was so warm, so inviting. I wanted to explore more, reach deeper but her grip on me kept my hand still.

"Be gentle now, okay? I'm a sensitive girl." She giggled, relaxing her grip on my hand. Letting me feel her with a light touch.

"Is that okay?" I asked her. Trying to stay looking at her while Candi stripped off her top next to me.

"A little higher." Tandi whispered. "Yes, that's, Ahhh."

Her knees started wobbling as I ran my fingers over that part of her. I took that as a good sign, moved back and forth over it.

"Ohhh Goddess." Tandi had her eyes firmly shut now. "Keep up that pressure, but make little circle motions."

I did as she wanted. Listening to her quiet breaths and moans to know I was doing good. Ignoring the louder grunting sounds Candi was forcing out of my sister with her mouth now.

I stole a glance over to them. Candi with her head buried under my sister's legs. They were both toppless now, but I couldn't see Candi's tits in the flesh. Only my sisters. Small perky mounds, with the puffiest nipples I'd ever see, wet from where Candi had been drooling over them.

"Don't stop now!" Tandi moaned. Bringing my focus back.

"Right, sorry." I couldn't get caught up with what they were doing when I had my hand on a girl's pussy right now. What did it even matter what they were doing. Candi wasn't mine... she was Sam's.

"Fuuck you taste so good my little puppy."

"Keep rubbing my clit." Tandi grabbed my free hand and brought it around to the base of her pussy. "But start spreading open my cunt."

I slipped the first finger inside her with ease. Letting her sloppy wet cunt envelope my finger as deep as it could.

"More." Tandi whispered. Not asking but commanding.

With a second finger and then a third inside her just as easily as the first I could feel her body shudder. Like for every finger I added I was getting closer to scratching her deepest itch.

"Nnughhh fuuck baby. Don't breathe until mommy's cums."

My eyes darted left again. Candi was on top of Sam now, pushing her cunt into her mouth. That left the bottom half of my sister exposed. Her spread legs leading right to her open, dripping pussy. Shaved smooth and trembling. Desperately wanting its master's attention.

"More!" Tandi grabbed my wrist so hard I felt like it might snap. Forcing my hand in deeper. Fucking herself with it like I was a toy.

When it was clear just my hand wasn't enough to satisfy her urges, she pushed her own fingers in. Spreading her cunt open wider with the additional four fingers.

"UuuHghhhhh fuUuck that's it." She screamed into my ear. "Break my useless cunt apart!"

"OooOhhh baby don't stop."

"FuUuuuck I Want you to Rip me in HALF!"

"Lap up my cunt bitch!"

"Ohhh fuuuck, yes yes YES!"

Her cunt clamped down around our hands, liquid shooting out of it uncontrollably. Drenching me as she rode her orgasim to completion. Her screams mixing with Candi's as my sister finished her off. She didn't let go of my hand until she collapsed on top of me, resting her head on my chest as she flopped half off the couch.

"You..." Tandi started, stopping to take a breath. "You really know how to make a girl glow."

"Must run in the family." Candi said, looking over her shoulder.

She was straddling my sister's chest now. Holding her throat while Sam played with her cunt. My eyes met with Candi's for a moment before I darted them away. But she had seen. She had known I was watching them, not just the one time but more.

She climbed off of my sister. Standing fully nude next to her. Teasing and taunting me to look at her. To stare at her with more than just my peripheral vision. To get a glimpse of her tits for real, but in doing so, get another glimpse of my sister.

I didn't want to feed her taunts anymore so I kept my eyes forward. Even as she slowly and seductively bent over to put her clothes back on.

"Are we done Miss..." Sam asked, a little dejected. I guess Candi wasn't exactly a generous lover.

"Oh I'm not finished with you." I heard another slap. Was that one on her face? Or maybe in her tits? Making her puffy nipples even redder. "But your brother's right, we should get home."

"Awwww." Tandi purred. "I was hoping to get a round two out of him."

"Go use your toys you insatiable freak." Candi laughed as she pulled her shorts over her ass cheeks. "I want to finally fuck my little puppy on her own bed."

Great. She still wasn't done with her. I don't know why I was getting so mad. Why I felt like she owed me something. But it was just getting more and more grating as the night went on.

"I hope you're not tired, Finn." Candi leaned down in front of me. Letting her tits hang right in front of my eyes. Sucking the taste of my sister's cunt off her fingers while she made me stare into her cleavage.

"Because your sister's screams are going to keep both up all night!”