A rather dirty form of cleaning.

Jane Shepard wasn't sure how she'd ended up in this situation. Obviously, Tali had decided to place even more trust in her than she already did. Why else would she call her down to an otherwise empty medical bay and let her see something that had never been visible to any of the crew before. It must have been so difficult for her, being **** to hide such a huge cock from the world, although Jane couldn't fathom how an envirosuit could hide the pytho- THRESHER MAW that Tali was packing. Even confined to the suit-straining bulge in the Quarian's crotch it was easily the biggest she'd ever seen, vastly outclassing anything less than a Krogan and probably outdoing them too! And Shepard had seen a LOT of cocks. Her time before joining the military had left her rather jaded with humans, to the point that she'd regularly fantasised about getting the chance to travel the galaxy and experience new and exciting flavours of man-meat. She'd sampled every species that could be found in Citadel space and since her resurrection had eagerly abused her surveillance privileges to watch a particularly explicit recording of Yeoman Chambers rutting with a Varren, but out of all the rods she'd experienced her favourite had to be Quarian. From their flared heads and bulging veins to their throbbing knots, every nervous young pilgrim she'd smooth-talked out of his suit had been an amazing fuck no matter what hole she'd had them fuck her in. If it weren't for her need to be properly WRECKED every so often she'd never bother with any other species.

Jane Shepard was addicted to Quarian cock. And here was Tali, sporting one that satisfied her size queen cravings at the same time!

"Being in this suit makes me so hot and sweaty, could you clean me off please?"

Jane licked her lips and made to pull Tali towards the elevator.

"Let's get you a proper clean then. You can use my sho-*MMMPH*!"

Tali planted one hand on the small of Shepard's back and pulled her in close as the other pushed two fingers into her mouth. The taste of the Quarian's envirosuit flooded Shepard's mind with memories of teasing and foreplay; licking, kissing and sucking at their cocks through the rubbery protective suit to satisfy her hunger while her partner took their life-saving immune boosters. Jane's eyes unfocused as the taste sent her saliva production into overdrive. Tali laughed a little at the drool starting to run out of the Commander's mouth, her voice growing more and more confident as she realised what was happening.

"Really, Shepard? The taste of my envirosuit is making you slobber enough that we don't NEED a shower!"

The fingers withdrew for a moment as Tali loosened her grip for a moment. She seemed to shrink back in on herself as her voice softened.

"Was that okay? I don't want to make you feel bad about this. U-Unless you want me too, that is. I mean, if you want me to stop then jus-"

"Ssshh... It's fine, Tali. Seeing you be so confident is making me SO hot, I can tell you've wanted to do this for a long time."

"R-really?"

"Well, if you need to be sure... Dominate me Tali'Zorah, that's an order!"

Tali didn't disappoint, forcing the two soaked fingers back into Jane's mouth far enough to make her gag as the hand wrapped around her came up to her shoulder and **** her down to her knees. The engineer's voice hardened again as she looked down at the other woman.

"You love it, don't you? Being on your knees in front of a Quarian, knowing you're being **** to obey someone the rest of the galaxy considers vermin... It makes you so wet, doesn't it? You must want to be filled so badly."

"Uh-huh *glagkh*!"

Jane's eyes fluttered as Tali started to pump her fingers.

"Too bad! Just because you're so conditioned you get off on the taste of an envirosuit doesn't mean you know how to please a real cock. I bet none of those puny males were this hung, were they?"

"*Gagkh* *Glugkh* Nuh-uh! *Glugkh*"

"Hah, thought so! Now are you going to be a good girl and clean me up?"

She abruptly withdrew her hand, leaving Jane gasping and **** as spit poured down her chin.

"Y-Yes Tali, I'll be good."

Tali cupped Jane's chin and tilted her head to look her in the face again. The hand on her shoulder reached between Tali's legs and undid some sort of zipper, letting her cock and balls burst out and slap heavily onto Shepard's face. Jane's eyes rolled back in her head and her pussy throbbed as the stench of sweaty envirosuit rubber and shemale musk filled her nostrils.

"Shooo goood..."

"What are you waiting for, Shepard? Clean me up."

Tali moaned throatily as Jane's tongue slipped out of her mouth and gave her cock a long, slow lick. Jane whimpered at the salty, earthy taste before she began lavishing Tali's rod with sloppy kisses and swept its length with her tongue. The whole time, the redhead's hands were resting on her thighs as she worshiped Tali.

"Why aren't you using your hands, slut?"

"*Mwah* Because you didn't tell me to, Tali."

"Good girl, keep them there until I'm clean. Wouldn't want to stain your armour after all."

"Yes Tali. *Slurp*"

Tali groaned as Shepard finished coating her shaft with spit and moved on to her knot, the size of a large apple and far too big to fit in her mouth. Instead, Shepard spat wetly on it and swiped and lapped with her tongue to spread the saliva around. Tali shivered and twitched at the sensation of the soft tongue tracing every vein on her swollen flesh as Shepard worshiped her knot. Then Shepard started on her similarly-sized balls and Tali almost lost her mind. She felt her cock throb and her ass start to clench as Shepard slobbered all over her nuts. As the pressure built and built she grabbed Shepard by her hair and pushed her back.

"You know Shepard, I think I do want to stain your armour. You deserve a reward for being such a good girl and what could be better than showing everyone what a slut you are? Thrust your chest out."

Jane blinked in surprise and disappointment at the sudden loss of Tali's tasty balls, before the Quarian's words sunk in and she arched her back eagerly. Tali aimed her cock at the chestplate of Shepard's armour and imagined how big a bust she'd need to have to justify having boobplate on her official combat uniform. One, two, three quick pumps with her spit-coated hand and suddenly her balls were pulsing, her ass was clenching and wads of cum were forcing their way out of her as she screamed in delight.

"Kee-LAH! TAKE IT! WEAR MY CUM YOU FUCKING SLUT!"

Jane grinned brightly as thick, sticky cum blasted out of Tali like a firehose across her chest. It looked good, it smelled good and - she opened her mouth and let some tiny drops splatter onto her tongue - yep, it tasted good too! She shifted her chest from side to side, making sure Tali plastered every inch of her front as the top five or so layers oozed down over her thighs and crotch. Eventually Tali was left panting raggedly as the last string of cum dangled from the head of her cock. Jane's armour was practically glazed as her nostrils flared to huff as much of the smell of Tali's jizz as possible.

"Hah... Hah... D-Did you enjoy that... Shepard? Oh, um, you can act normally now if you want."

Jane carefully wiped the last errant drop of cum off of her face with an armoured finger before sucking it clean and smiling.

"That was wonderful, Tali. In fact, it was so good that I want my mouth to be the first thing you go to when your cock needs cleaning."

With that Jane slurped up the last dangling string of cum, planted a chaste kiss on Tali's cockhead and strode out still plastered with Quarian spunk. Tali sighed and sat down heavily in one of the chairs as the elevator doors slid shut. Wow, that had been intense. She felt a sharp pain in her lip and groaned as she realised she must have bitten it at some point. Wait...

Pain.

This wasn't a dream. She really had just dominated Jane Shepard, plastered her with jizz and was now sat in the Normandy's medical bay with a massive girl-dick hanging out of her suit as her crush wandered the ship in cum-painted armour of her own volition.

Luckily, Tali had her priorities in order. Rather than fainting at the realisation, she grabbed one of the immune booster hypos she had originally come in for and jabbed it into herself before stuffing her cock back in and wrestling her envirosuit closed.

Then she fainted.