An uncomfortable revelation.

Tali wasn’t really aware of her surroundings anymore. She wasn’t aware of much right then, honestly; most of her brain seemed to have shut themselves down to preserve themselves against the waves of pleasure that were currently battering it - even the parts that would normally be handling such things. She wasn’t sure if her mind had shrunk down into a seething pinprick of lust and endorphins when EDI had stammered out that line about ‘understanding the organic impulse to worship’ or when the gynoid’s mouth had opened impossibly wide before sealing itself around her cockhead, but it had happened - and now she was practically a prisoner in her own body and barely able to process the sensations that EDI’s mouth was giving her. She seemed to be in a blank void; the only sight was EDI’s kneeling form in front of her - the Synthetic woman’s humongous ass blocking any sight of her feet from above, even with her new ‘boots’ - and the only sound was the steady ‘glukh, glukh, glukh’ of her throat around Tali’s meat as she bobbed her head on the first few inches of it.

Tali desperately wanted to go deeper, to sheath herself in the deliciously-textured tube of fake flesh that brushed against her tip with every downstroke, but it was all she could do to remain standing. She had no idea that the chemical spit currently shining on her shaft was stimulating her nerves to become even more sensitive, nor that the tongue that twisted and dragged itself over the flesh in EDI’s mouth was vibrating subtly - she only knew that those glossy black lips was driving a spike of agonising pleasure deeper into her brain with every stroke down her cock. She could feel her release getting closer by the second as her balls started to throb and her urethra began to dilate in preparation for the massive wads of gooey white fluid that were about to rush down it.

When EDI abruptly pulled all the way off of her cock with an exaggerated (not to mention totally unnecessary) gasp and a small waterfall of drool running down her chin and splattering onto the shelf of her jacket-clad chest, Tali groaned and tried to move her arms enough to **** her back down onto it. She needn’t have bothered though; because EDI’s next action was to wrap her hands around the shaft to form an ersatz hole, set them vibrating with an intensity that Tali was sure was more commonly used to pulverise concrete and slide them up and down her cock from just below the flared tip to the point where it met her knot - still bizarrely unswollen despite the contact-based **** currently coursing through Tali’s body. As welcome as it was that EDI was keeping up her momentum, it was her words that finally tipped Tali over the edge.

“I need you to nut on me, Tali. I need you to hose me down and mark me like you marked Shepard.”

Even though EDI’s voice never changed from her normal deadpan, Tali though she heard an undercurrent of desperation in it. Thought she heard it, because she was a bit busy blowing her load all over the busty gynoid’s jacket. The fabric of the Normandy’s uniforms was waterproofed enough that EDI’s faux-saliva hadn’t done more than lie on its surface, but the off-white goo that now splattered onto it seemed to be in a whole other league. The first layer soaked into the fibres like they were drinking it up and EDI noted with some surprise that the slimy sensation of the stained, discoloured cloth against her ‘skin’ - and especially her nipples - was causing her platform to shudder involuntarily with pleasure. The next layer (and all the layers that followed) slapped wetly against the ruined jacket and oozed down to the undersides of EDI’s prodigious boobs, where the weight of the fluid made it drip onto her thighs and crotch as she sat back on her heels.

Tali moaned as EDI’s hands moved away from her and started scooping dollops of excess spunk into that infuriatingly sexy mouth. That load had been even bigger than the one she’d sprayed Shepard with, but it hadn’t even brought her the small amount of relief that the previous one had. In fact, she seemed to be even more riled up than before; her balls were churning, fuller and heavier than before and her cock visibly throbbed and twitched as her veins began to bulge along its length.

“Wh- Why am I getting, nnnngh, even harder?”

EDI released the finger that she’d been sucking on with a lewd pop and looked up at Tali.

“I would have thought it was obvious, Tali - you haven’t cum yet.”

“I… WHAT?! What do you mean I ha- oooooh no, shouting is bad, shouting makes it throb…”

She took a deep breath and tried again.

“What do you mean I haven’t cum yet?”

“As with your ‘ejaculation’ with Commander Shepard, your knot has failed to expand to its full slut-stuffing size. Based on this fact - as well as the fact that the hot, thick spunk I just ingested has a substantially different makeup to normal Quarian semen - I can draw three conclusions. First, that my prior assumptions no longer possess any significant merit and that I require more data on your throbbing shemale fucklog before I can properly worship my new organic god. Second, that you are such a virile stud that you leak a fluid more potent than any ‘proper’ ejaculate on record with only minimal stimulation, never mind your actual precum. Third, you will likely only be able to achieve a true orgasm when knotted balls-deep in a hot, needy pussy.”

Tali’s mind was still awhirl. She hadn’t cum yet? But if she hadn’t cum yet then Shepard had… The ring on her finger seemed to throb in time with the pulse thumping through her head and her cock. Shepard had been teasing her! Ooh, she was going to give that minx a piece of her mind when she saw her. More than a piece in fact, she’d give her sexy redheaded commander LITRES of her mind - hot, gooey thoughts that would make her belly swell…

“You appear to be in some distress, Tali.”

As Tali was pulled from her musings - which mercifully spared the ‘piece of her mind’ euphemism from any further **** - by EDI’s remark, she realised three things. One, that her hands were wrapped around her dick in the same way EDI’s had been and were practically flying up and down it. Two, EDI was now the only other occupant of the cockpit and was presently standing off to one side. Three, she just couldn’t stop jerking it to the thought of Jane Shepard being stuffed with her cum, even as she groaned out her reply.

“Gotta cummmm…”

“There are a number of possible cures for your present condition. Given your longstanding crush on Commander Shepard and the way she is currently grinding her crotch against the corner of her desk, I believe that requesting her presence in the cockpit will very quickly result in you obtaining a full orgasm. Similarly, Yeoman Chambers is currently bouncing on a large equine dildo and repeating ‘keelah se’lai’ as if in a trance, so I predict that ordering her here would have a very similar result.”

Tali screamed through gritted teeth as an image of the two women appeared in her mind’s eye, one lying atop the other and their tongues entwining as they offered their holes to her. A dozen spurts of impossibly-thick pre splashed onto the cockpit floor. There was something about it… something that just seemed so…

“Of course, if you would prefer convenience, then you could always use me as your personal fuckdoll.”

Tali rather liked the sound of that, a personal fuckdoll to service her whenever her two humans were too worn out to continue. If she noticed the way she was already referring to Kelly and Jane as ‘hers’, or the way the ring on her finger pulsed softly at her final surrender to the urges that came with her new member, she gave no sign. What she DID do was gradually slow the pace of her stroking, until eventually her hands left it entirely - leaving the too-heavy tube of meat jutting from her open suit, oozing the same pale lubricant that had been pouring out whenever she wasn’t shooting ropes of pre ever since EDI had first unzipped her. For an instant, there was a very un-Tali-like smirk on her face as she made up her mind.