Hi, I'm Maddie, with my sister, and we were invited to the studio for a private 'dance lesson' with Abby. Having absolutely no clue as to what was going on, I proceeded up the stairs at our old studio and knocked on the door:

“Come in, come in.” Abby said.

When I opened the door, what my sister and I saw after I opened it was really shocking. It was our instructor Abby in nothing but sexy lingerie, I asked:

“Miss Abby, why are you dressed like that?”

Instead of giving me an answer, she tongue-kissed me, and I saw her do the same to Kenzie, when she stopped kissing us, she said:

“Don't you guys want your dance lesson?”

“You bet we do.” Kenzie said.

With that, Kenzie resumed tongue-kissing Abby while I stood there and watched them kiss. I digress, it was getting hot in that studio, if you know what I mean, my friends. When Abby and my sister stopped kissing, Abby called to me, almost breathless:

“Kiss me, Maddie.”

Before we were able to kiss, Abby took a seat on the window bench and called me over, then, we kissed while my sister was groping and kneading her breasts through her bra, while we were kissing, I could hear Abby moaning in my mouth. After a while, we stopped kissing when Abby whispered in my ear:

“I'm getting so wet.”

Kenzie knew the signal and backed off, with that, Abby took off her bra in order to reveal her big breasts, already hot with passion, my sister and I started to kiss, lick, and suck one breast each, when we got to her nipples, she cupped the back of our heads with her hands and moaned:

“Ohh, oh, oh, oh, Maddie! Oh, Kenzie! Oh, oh, ahh, oh!”

After a while of Miss Abby's breast worship, she moaned something else:

“Oh, Maddie, fuck me.”

Without saying anything, Abby released my head, then, I left my sister alone to play with Abby's breasts while I moved down and kissed her fat stomach, eventually moving further down to slowly take off her panties, once they were off, I moved down between her fat thighs to look at her pussy. This is the very first time that me or my sister had sex with an adult, so, to pop that proverbial cherry, I licked my hand and sucked on my fingers, after that, I inserted two of my fingers into Abby's hairy pussy while sucking on her large adult clit. She just screamed while I was finger fucking her really fast:

“Mmm! Ahh! Maddie!! Fuck!! Fuck me! Yeah! Fuck me!! Fuck me, harder, Maddie!! Harder!!”

After a while, I picked my head up and saw my sister strip naked, then, I saw her clothes and panties rain down on me, after that, I saw her wrap her legs around Abby's head, then, I saw her clutch Abby's head with her arms with Abby grabbing Kenzie's nice small and round butt when she inserted her tongue inside of my sister's pussy, when that happened, she cried out in intense pleasure while grinding Abby's face:

“Mmm, ungh! Oh, yes, Abby, yes! Lick me! Lick my pussy hard! Oh yeah!”

While my sister was enjoying herself, I resumed sucking on Abby's clit, then, I started nibbling at it with my teeth, when I did that, I noticed her getting wetter and more lubed, so, I decided to do something a little more daring, something I never tried before, not even with Kendall, I took my fingers out of her pussy, and took my mouth off of her clit in order to get all of my fingers into her, and to use my thumb to massage her clit, once I did that, Abby bucked her hips against my hand so I would go deeper, I was in up to my wrist with my thumb still doing its job, then, I looked up and saw Abby switch her tongue from Kenzie's labia to her clit, after that, she took her middle finger and jabbed it into my sister's pussy, when that happened, she screamed:

“Ohhhhhh!! Abby!! Fuck me!! Ahhhh!! Fuck me!! Hard!! Fuck me hard, you fucking bitch!! Oh, yeah!! Fuck meeeeeeeeeee!!!”

I have never heard my sister talk dirty before, but, it was turning me on, in fact, I was getting so wet that I was pushing my legs together to keep me from squirting. After a while, that did not work, 'cause, I heard my sister screaming, so, I un-clamped my legs and let my juices flow, I was so soaked that I felt my juices run down my legs, then, I heard my sister scream to a really loud climax:

“OH!! YEAH!! YEAH!! HARDER!! I'M GONNA BLOW!! I'M GONNA!! AAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHHHHH!!!”

When Abby took her finger out of Kenzie's pussy, her juices flowed downward, and there I was with my tongue sticking out catching drops of her juices, just like catching snowflakes when I was younger, but, this was way better. Some of it landed on Abby's face and hand, it also landed all over my face, but, I managed to swallow most of what rained down. After that, Abby licked her hand clean, then, they tongued each-other once again. After the kiss was over, Kenzie climbed off of Abby, then she took my head in her hands and kissed me, then, she asked:

“Sis, what do you want me to do?”

“Lick my pussy only in the way you can.” I said.

Without saying a word, Kenzie maneuvered behind me, ripped my shorts and panties from my body, gave my butt a firm grip, and finally managing to insert her tongue into my soaked folds. She didn't just go in and out, she encircled my entire entrance with her tongue, it felt so good that I moaned:

“Mmm, ohhh, Kenzie, oh, Kenzie, lick me! Yes, good girl, Kenz!! Oh, yes!! Yes!! Yes!!”

The more my sister was grinding her face into my pussy, the more I was bucking my hips against hers while I was still attached to Abby. The sensations going through me due to what my sister was doing to me. I just could not stand it anymore and screamed:

“Kenz!! I'm cumming!! I'm gonna cum on your face!! AAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHHH!!!”

After my orgasm, my sister crawled up to me and kissed me with her face full of my juices. I guess our lovemaking triggered something in Abby, 'cause, at that moment, she screamed and came all over my arm:

“AAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHH!!!

After her orgasm, I took my hand out of her pussy, and licked my fingers, while Kenzie licked my palm and wrist clean of Miss Abby's cum, bu the end of the 'lesson' we all had a taste and more of each-other. In fact, when we finished licking ourselves, Abby said:

“Well, girls, I am spent, how was it?”

“Great.” I said.

“Awesome, I actually made love to my sister.” Kenzie said.

“Ready for round two?” I asked.

“Hell yeah!!” Kenzie said.

“If you want to do that, then, go home. Lesson over.” Abby said.

“Great, thanks, Miss Abby, and, if you need another 'dance lesson' I am not that hard to find.” I said.

“I know, see you in class.” Abby said.

“Bye, bye.” Kenzie said.

The End