One thing leads to another.

After another lengthy few hour session with the newly "improved" South Dakota, she took her leave, promising more fun times with you as she closed the door, leaving you alone to ponder about the direction things are going. Obviously, you were still concerned about South Dakota's situation. After all, this one isn't like the original, on the inside that is. Physically, she's the same, but what you worry about is how she's going to act from now on, having a cobbled-together 'soul' of your own creation as well as vestiges of her old one. She had managed to answer any questions you posed to her in relation to her old self, which she surprisingly did well in.

"Haah...as far as I know, South Dakota should be able to pass herself off as the same old same old...just with a little more flair involved." You sighed before smiling. "Still...this was a success by my standards~!" You perked up with a smug grin on your face. "Not only can I create a 'soul' from scratch, I can also modify them to my liking~! Well, granted I get close enough to them~!" You grinned even wider. "Maybe I should go for something a little...bolder...well, before that, let's see if my experiment with Illustrious will go well~ Seeing this...maybe I should..."break" her a little...~"

To that end, you laid down in bed as you exited with your ghost form. "Still can't get used to the fact I've merged with Formidable. I wonder if this permanent?" You questioned briefly before shrugging. "Well, even if it is, all it did was give me one hell of a new body to take back if I go back to my world~" You continued going through the ship as you made it back to Illustrious's room. "Here we go~" You smiled as you phased through the wall blocking your view. Inside, you face quickly switched to amusement as you witnessed this lovely sight as you prepared to enact your own plan.

***

"Haa...Ahh...why....why am I so...hot down here...~!?" Illustrious's gentle, yet confused voice echoed in the room, as did the sound of her fingers rubbing her crotch furiously, her half-lidded eyes dazedly staring down, her mouth somewhat dry as she panted heavily, her tongue hanging out as she did so. Still, she could feel the pressure continue to build in her nether regions. "N-Now of all times as well....on this mission too...ah~ Why now...~?" She continued to question herself as her fingers quickened their pace and intensity.

"S-So close.....ah...~ cl-close~ Mnn...~" She moaned softly, her body wracking with pleasure as she wanted to cum. "There....yes...ahh...haa...~!" Her fingers continued to along her slit before entering and exiting at a rapid pace, only furthering her desires to orgasm. 'There...I'm going to...ahh~!' But just as she was pushed over the edge, she felt a chill briefly, but ignored it in favor of wanting to orgasm.

"...E-Eh...? Ahh...~ C...Come on....ngh...~??" Illustrious began to finger herself harder and faster. "N-No....why....why can't I climax....nhaa...please....let me...~!" No matter what she began to do, she found herself unable to take that final step, something subconsciously stopping her from cumming her brains out as the minutes passed.

"Nhoo...Nhooooo....why....aghh...mnhh...~! Whyyy...~" Illustrious was getting more and more **** as her desires began to overtake her reasoning, and she could feel her sense of reason and morality slipping lower and lower. 'Anything...please...let me cum~ I need to cum...~ Cumm.....cummmm.....I want to cum so badly~!' Her mind screamed out in distress as she was right there on the edge, but couldn't get over it. 'I want to cum....I need to....ahh...I'll do...anything...to get rid of this....~ please....~' Her whole body was quivering and squirming in bliss as she continued this agonizing cycle of masturbation, to begging, then right back to masturbation, rinse and repeat. All the while, her body's sensitivity kept on rising and rising, to the point where her if the top part of her dress simply shifted slightly, it was enough to stimulate her nipples to a large extent. She even began to use any and all items available to her to try and get her to cum.

It started small enough, a pencil or pen, but gradually it rose as her rationality drained out of her. Soon enough one become two, then three, or even four pens or pencils, unfortunately to no avail, still she tried valiantly, fucking herself with the writing tools. Then she began to hump her pillow, once again, started off slowly, but then sped up, all but bouncing and rocking her hips, and again, to no success. She then started using other objects, such as trying to use the corner of her desk and rubbing her pussy on it, the chair, the support on the bed, everything that even looked vaguely like something she could use, she did. And nothing worked, it only worked to break her down even further and make her unsatisfied.

"Nghhh...~ Why....Why isn't anything working...ahh...~ So close....~" Illustrious, at her breaking point, found her pussy constantly leaking love juices now as her nipples were incredibly erect and poking out, visible through her dress. "Mnhhh~!" She had ended up masturbating fiercely simply in the middle of the room as she couldn't take much more of this before turning crazy.

That's when she heard the door knock.

"Illustrious~? Are you in there?" A familiar voice asked through the door.

"...Formidable~!?" Her mind raced and raced, her pussy tingling with excitement as an animalistic lust bubbled within her heart. "N...Nghh....C-Coming~! Hold on a moment~!" She miraculously managed to stop any of those lewder thoughts from taking her over as sensibility took hold. 'If she sees me like I am now....ehehe...~' Illustrious stopped temporarily though, her mind briefly considering that she simply show Formidable as she was now; her pussy dripping wet, her panting quick and shallow, her eyes shining with a large amount of forbidden desire. She then shook her head as she quickly fixed her dress, wiped everything down very fast, and went to the door.

***

"Formidable...p...please...come on in...~" Illustrious greeted you as you smiled and went inside. 'No matter how much she tries to hide it...I can see that the massive increase of my own perverseness I added, has very well taken root inside of her...and the order I implanted before heading back into my body...~ She looks and smells like a bitch in heat now compared to that lovely, flowery smell earlier...~' You thought as Illustrious sat on her bed, you followed suit and sat next to her. 'I wonder if I can...see what I've done from here.' You concentrated briefly and soon enough, you could see that Illustrious's soul, which was before glowing bright white, now was substantially less bright as well as having a relatively red tint to it now in the spots the 'soul' was not glowing in, as you saw your influence overtaking her own natural behaviors. 'Oh...~ The 'soul' I made for South Dakota glowed brightly as well...but I wonder if that's what an untampered one looks like... but Illustrious...I only added things to her 'soul' but... it seems different! If I remember...red usually signifies lust...' You thought to yourself as you shut off that type of 'soul' vision.

"Illustrious...~ How are you feeling~?" With a cheeky grin on your face, you scooted close enough to Illustrious as you heard her breathing become erratic.

"F-Fine...yourself...Uhm...did you need something...from me...~?" Illustrious asked as you got even closer to her body as you prepared to take her to new heights.

"Hm? Ah~ Well, I wanted to know how you're feeling, your face is rather red, you know~?" You said as you stood up and went in front of her, then leaned down, giving her an eyeful of your breasts as you placed the back of your hand on her forehead, "Oh...do you have a fever~? Or maybe..."

Illustrious's eyes automatically were drawn to your bust as she went to stammer out an answer. "N-No! O-Of course not! I'm perfectly healthy-AH?!" She suddenly yelped as you decided to take it further now, knowing she's most likely not going to resist anyways, the line separating what's left of her rationality from unleashing the desire inside was as thin as paper as you got on top of her. "F-Formidable...?"

"What's wrong...~?" Your face took on a more seductively enchanting look, as you leaned down to whisper in her ear. "Are you...perhaps...in heat...~?"

"N-No....I...It's not like that....~" Illustrious whimpered.

"...Liar...~" You nipped at her ear as you brought one of your hands down, slipping under her dress and sliding her panties down, then pressed down on her clit as your fingers entered her pussy. 'Sorry for making you wait so long, Illustrious~ Now...' You thought as you then whispered the trigger phrase into her ear. "...Cum for me...~" You then pressed your lips to hers, capturing her lips in a deep, passionate kiss.

"Mm...?" Illustrious, who had so far been unable to cum whatsoever, suddenly felt the most incredible rush she's ever felt in her whole life slamming into her. "MNHHHHHMNPHHH~?!?!?!?" Her eyes shot wide open before rolling back, her body convulsing with such an **** intensity as her back arched up and her hips wildly thrusting forward. Her pussy shot out a long stream of her love juices as she went far beyond the edge of any orgasm she's had prior to now. 'I'm finally cumming~! Cumminggggcummingcummmmingggnghhhhh~!' Any remaining thoughts she had were evaporated, filled with nothing but thoughts of happiness and relief as all her desires were released at once.

'She's done for...~' You internally smiled as you deepened your kiss with her, awaiting your prize at the end of all this as her orgasm lasted on for well over an hour, only lengthened as you continuously played and touched her body in the process. "...Mmwah...~" You finally ended it all as you got off of her, looking at the once elegantly dressed woman now a shivering mess as you sat next to her. "You're mine now, okay...~?" You grinned at her as you went to check her 'soul' after all this. "Yes...I figured as much~" You let out an amused chuckle as you saw her 'soul' glowing again, this time, it was certainly far more corrupt and filled with desire, as the glow went from a previous white to a now lovely red. You waited a few minutes to let her regain her bearings a bit.

"Well...we're not done yet...Lusty...~ It's not fair that you get to have more fun, after all...~" You called her by a new name as you petted her on her head, getting her dazed attention.

"....Hee...~" Illustrious smiled, unlike before though, this was purely one of lust and pent up desires as her eyes looked to your crotch, which also had become rather aroused.

***

"Here...?" South Dakota tilted her head as she made her way through the hallways, she needed to talk to her sister, Massachusetts, about getting the schematics to her ship, it would probably make it easier to navigate, after all. She looked at her phone again, seeing the text Formidable sent to her, "Formidable said it was....the third door...or was it the first?" She sighed, she'd managed to get by and not arouse any suspicions about her lack of knowledge and memories on certain things, chalking it up to stress and overall tiredness as she genuinely didn't know how to answer. Regardless, she knew enough to pass these all off as she continued walking through the halls, passing by a ship girl or two every so often, her mind tending to wander and guess how each of her comrade's would do if they had sex. "Hm? Oh, I think it was down this hallway.

It soon became evident that this was the right place to be as she passed one of the closed off rooms, she heard some noises. "Oh...?" She backtracked as she leaned in closer, most certainly hearing something inside, her heart beginning to race automatically. "....Formidable?" She knocked on the door, awaiting a response.

"Mnh...It's open." She heard Formidable from inside, clearly noticing how aroused her voice sounded.

"I'm coming in then..." South Dakota didn't quite know what to expect as she opened the door and was pleasantly shocked to find Formidable sitting on the edge of the bed, but more so that she had her legs wrapped around Illustrious's head. The latter of which was currently sitting on the floor eating Formidable's pussy out, her mouth suctioned to it as her tongue was furiously lapping and entering Formidable's cunt.

"Sorry I couldn't get the door for you~" Formidable apologized to South Dakota. "Miss Lusty over here didn't want to stop~ Isn't that right, you slutty bitch...~?" Formidable playfully mocked Illustrious, her hand caressing Illustrious's head as the other woman blushed even further. "...Haa..~ Her tongue really is a piece of work...~ You know...~?" Formidable then looked to South Dakota with a lustful look. "Want to join in the fun with my lovely pet...~?"

"..." Silence for a few seconds before South Dakota's mouth turned up into a smile as she licked her lips. "Of course...~" She then closed the door and locked it as she indeed, went wild with fun.