An unexpected escalation

My love’s arms were wrapped tightly around my thighs, trying and failing to brace herself as Rina slammed into her with complete abandon.

Rina: ~Haah! Augh, I’m so fucking close~! Just a little more, Nia~!

Nia squeaked out a weak reply of confirmation, drowning far too deeply in her own orgasm to respond properly.

Their plans to finish together quickly flew out the window as we began in earnest. Nia had started cumming almost as soon as Rina hit her depths. She didn’t have much chance, to be fair. Her body was already on a knife’s edge, which, combined with the uniqueness of back wall stimulation and her naturally high sensitivity, had utterly sealed her fate. Rina, on the other hand, had unfortunately hit a second wind while waiting for us to start, and couldn’t quite manage the peak she needed for relief…

The resulting sex was an impatient and off-tempo mashing of bodies; Nia locked in a brutal barrage of shallow chain orgasms as Rina roughly attempted to finish.

Nia’s head slammed against my lap, gasping as she sought some kind of purchase against her partner’s merciless onslaught. Her expression twisted in a mad ecstasy, and her mouth hung carelessly. Rina matched her perfectly in this moment, **** and sweating as her hair caught her lips and matted against skin.

As sexy as it was to see them overwhelmed like this though, it also left me slightly troubled. Watching the two of them on either end of the ****, cumming too much and not cumming at all, made me feel like we were unwittingly part of some cosmic BDSM performance.

Another deep thrust snapped Nia back to semi-consciousness, and myself from my wandering mind.

Nia: AAH~...! FUH-UCK~! Emmmmm~! I f-uh, feel like my g-ugh…god d-damn brain is melting~! Rinaaa, puh--please! Is too~oo much! I…I caa~an’t! End Scene!

Nia’s voice gave out after crying the safety phrase and Rina grimaced, stopping her thrusts as concern for Nia painted her. She moved to pull out, but Nia grabbed her and held her in place. Rina didn’t fight it, and settled for holding herself as deep inside Nia as she could while waiting. She leaned over us, heaving and shivering as she tried her hardest to stay still.

Rina: ~Auugh~!

Nia shakily clutched her abdomen and slowly rubbed her hands along the toned muscles, massaging everything within it, including — much to the inserted girl’s chagrin — Rina herself.

Even if she wasn’t yet prepared, or even able, to properly voice them, Nia made her desires unmistakably known.

Nia: ~Haaah… oh god…~ahhh~…

Rina: ~Sh-hiiit… S…sorry about this Nia, I’ve…never…

Nia shook her head, still lacking the composure necessary to rebut Rina’s apology.

Rina: Heh…eheheh, i-is this what they mean when they say something's "like heaven and hell”…? I… I think I’m gonna go crazy if this keeps up…

Nia: ~S-same…I…

Nia covered her face with a hand and swallowed as she finally caught her breath.

Emery: Are you sure you’re okay, hun? You’ve been panting really hard.

Nia: Y-yesh…waaay better…than okay…I just…ugh…gimme a sec… I thought I was gonna die…

Nia went limp in my lap and stared blankly up at me. After a short grace period, her eyes shifted quizzically to Rina, then back to me again; flitting between the two of us as an idea evidently took shape. Her blush deepened, and a piece of her seemed to struggle, but, eventually, she found the strength to speak up.

Nia: I f-feel bad though…making you two wait while I recoup… H-hey, Rina…? Would you wanna, um…take me up on that offer? Right now?

Rina looked at her still in half-delirium, unsure of what she meant. Following Nia’s eyes, however, Rina appeared to pick up on whatever she had implied by that. A blazing embarrassment — and something more behind that — filled Rina’s face as she gazed towards me, apparently shaken by this mystery preposition.

Rina: …I…uhh…a-are you sure…? I-I thought you were joking when you said that! You said last week you were too -

Nia: Girl…we’re running outta time, and there’s no chance in hell you’re gonna get through the day if you can’t shoot a load or two…right?

Rina: I mean, yeah, but…we can’t do that. C-cause, y’know…then you won’t have the support!

Nia: …Aight, you have a point… Maybe just your…tits, then?

Rina bit her lip, arousal battling less direct emotions as she considered whatever they were referring to. I looked between them, my horny mind thoroughly stumped by this change of tone.

Nia: I’ll take that as a yes…

My love took a deep breath and then looked into my eyes, a nervous clarity shining through her otherwise unfocused green pools.

Nia: Em, you sit on my face this time. I wanna eat your ass…while you, um, play with Rina’s tits…as she’s fucking me.

Emery: …Hmm…?

My already short circuiting brain completely fizzled out, struggling to digest the new information it had been fed.

What? So…Nia wanted me to…grope Rina, while she gave me analingus…?

Half of the request made sense. Nia craving some anal play was nothing new. She had, in fact, just asked for this the other day after our sexting session got her fired up. But…playing with Rina’s tits? Requesting I pleasure our partner?

I reeled at that, more than I felt like I should. It wasn’t like it was that outlandish an ask — downright virginal, as far sexual acts went; she simply wanted me to go to second base with Rina. While they fucked, at that. It was basically just nudging our group session closer to threesome territory. If anything, this was more standard than what we’d been doing thus far…

I backtracked my thoughts.

Yes, It wasn’t that this was that out there, or that I even had an issue with it — as a matter of fact, I actually found the idea incredibly arousing. I’d like to think I’m sexually open, and I’ve always thought Rina was beautiful. Us mutually reciprocating with our partner had been one of my secret fantasies since we first considered this, especially once Rina was our partner choice… It was just…where had Nia’s scrupulous gone?

It had taken so long to work through her hang ups with the play…convincing her that she wouldn't be a bad person for doing it…with everything from high school fueling that… What happened?

Up to this point, Nia gave the impression that she wanted my attention to be focused on her. Even if it was in the context of her showing off to me, I had always assumed she was supposed to be the star. It was, I thought, her way of setting a personal boundary, and I’d long accepted that.

Had Rina’s…intimate interaction with me yesterday changed her mind? She did take that surprisingly well, but…I interpreted that as being different in her mind. Rina had done that spontaneously, and she had even apologized afterwards. This time Nia was the one initiating it…

I wasn’t sure why this bothered me so much. It wasn't that I was unhappy Nia seemed to feel less possessive now…it wasn’t. I just…never expected it to come up, much less like this, in the heat of the moment. It seemed so sudden, and made me feel like a distance had opened between Nia and I without my knowing. It…uprooted things I thought I understood about her…

Nia: …Is that a no? Am I going too far…?

I was shaken from my reverie by Nia’s sheepish question. She and Rina watched me carefully, worry etched into their blushing faces as they tried to gauge whether or not I was okay with the idea.

I took a breath and centered myself. This wasn’t the time to get caught in my head, this was the time to get lost in the moment. Nia obviously cared, otherwise she wouldn’t have been so hesitant about it. This was a testament to our hard fought communication, to our mutual trust. The fact she proposed this was a good thing. Asking for things shows she's involved.

Besides, maybe she was just feeling this out. We could always hash out the details later. She was still the Nia I loved, even if she had changed without me knowing.

Emery: Sorry, you guys took me by surprise.

Rina: So…?

Emery: Yeah, let’s do it!

Relief painted them, their shoulders slumping as the extra tension unwound from their bodies.

I gave Nia a long kiss, then quickly raised my ass over her face as Rina braced against my shoulders. The two of us looked at each other up close, our shy puffs washing over each other’s faces.

Rina: H-hey good lookin’, come here often?

Rina’s awkward smile bloomed as she tried to alleviate the anxiety she was obviously feeling.

Emery: Not as -

My quippy response died before it had a chance to live, as Nia’s arms wrapped around my legs and her tongue slipped deep into my ass.

Emery: ~Woah! Ooh~!

Rina’s face lit up as she took in my blissful expression. She shook with need and bit her lip, then leaned in towards me, pushing deeper into Nia as she shifted. The resulting moans from Nia traveled deep into my body as my love’s mouth vibrated, causing me to double over and bury myself in Rina’s pillowy breasts. I made an effort to pull myself from her soft, sweaty mounds, but, before I could, Rina took control; locking my head in place and thrusting wildly into Nia

I was completely surrounded by Rina now; the sound of her heart hammering ran through my ears, her heavy scent filled my nose, and her soft skin smothered my vision. I was grounded only by the powerful rocking of Rina and Nia’s sex, their moaning and pounding literally resonating through every angle of my body and shaking my core.

While this was enjoyable, however, now that this was —at least to some degree — a threeway I was not content to merely act as a distraction through which they endured their sex. While we were entertaining this dynamic, I was going to make damn sure they felt my presence!

I reached up and began playing with Rina’s ample breasts. I eased into it by rubbing the sides, careful to avoid anything too ticklish or close to the armpit. I slowly made my way down, massaging her with my fingers and listening for any especially positive noises. This was difficult, given she was currently ten or so inches inside my girlfriend’s pussy, but my years of experience were enough to parse what I needed.

Rina: ~Ooh! You’re so tight, Nia~! Ah~! My nips, Em! Play with them more~!

Emery: ~Like this~?

Rina: ~Yes! R-riiiight there~! That’s the good shit~.

Wow, I guess Nia wasn’t the only sensitive one in our party. I gently rolled Rina’s nubs around in my fingers, switching between pinching them directly and softly pulling them along with her sizable areola. This elicited another spirited moan from Rina. Yep, her nipples were definitely one of her sweet spots.

And speaking of sweet spots, my entire lower body was now abuzz with an intense, involuntary thrumming. Nia was giving me no rest, her tongue prying open every ridge and causing a powerful **** to build in my prostate. A steady stream of pre was leaking down my dick, pooling on Nia’s chest. At this rate I was going to cum without even touching myself, and, given how much she liked to tease, I was almost positive that was Nia’s exact intention…not that I was going to discourage it.

Emery: Aah~ Oh! A l-little more on the front, Nia~!

The three of us bounced our stimulations around, creating a ricochet where one’s pleasure became another’s. It was all I could do to stay focused on Rina’s tits. Thankfully though, my efforts did not need to last much longer. All of our cries and groans fed into an eventual crescendo, reaching a peak as our bodies all tightened against each other.

Rina: ~Ooohh! Ah! Oh god Nia, this is gonna be a big one~! Tighten up! I-I ah~ want you to feel every single rope!

Nia went wild inside me, and Rina’s upper body propped up mine as she plowed Nia’s depths. Her enthusiastic thrusting was strong enough to eventually leverage me out of her tits, until I turned upward and met her face to face.

Rina and I stared at each other, time seeming to slow in the moment. Her face was a mess of horny ecstacy. As she looked at me though, she wore a surprisingly innocent smile. That was the last clear thought I had before Rina pulled me in, locking us into a blurry, sloppy kiss as she finally, furiously unloaded inside Nia.

I could feel Rina’s pumping throb through both their bodies, which pushed me off the edge and into my own. My eyes rolled back and my mind went blank, the powerful anal orgasm tearing away any remaining sense of reason I had as I fully embraced Rina’s lips and showered Nia with semen.