Yukari Akiyama closed the door of her room, sat on the ground, and pulled a small plastic tub out from under her bed. Inside of this tub, which was about as old as she was, were her most prized possessions; two large models of the Polish 7TP, with double turrets.
"Oh no, Polish civil war!" she declared with mock-terror as she sat both tanks on the ground. Prior to producing such tools of military destruction, she had used wooden blocks, LEGOs, and a few pairs of her bras and panties to form, respectively, houses, defensive structures, and natural terrain across her bedroom floor.
"Boom, pow!" she declared as, back and forth, in a kind of turn-based combat, each tank model fired upon the other. Throughout her head, various pieces of historic trivia and mechanical knowledge about each of her favorite models whirled through her head, and the girl found it easy to get lost in how beautiful these works of engineering were.
"Oh no, the fascists won!" she declared as, perhaps a little dramatically, she tipped one tank onto its side. "The only defenses of the Polish people have collapsed! With the superior might of their tanks, these dastardly authoritarian social conservatives have conquered the fair democracy! What will the people of Poland do?"
An evil grin came across Yukari's face as she sat on the ground, leaned back, and pulled her panties off from beneath her dress, before sliding one of the tanks over to her side. "The rights of women all across Poland are being repealed! The right to vote, divorce, hell, even the right to consent!"
With that declaration, Yukari wheeled the tank forward and began to rub its plastic barrel against her pussy. "Oh no, the military superiority of this reactionary government is literally raping the fine women of Poland! Whatever will they do~!?"
With that lament, Yukari plunged the tank inside of her pussy. Back and forth, the model's treads squeaked across the carpet as she was penetrated by the state. "Ah, my virginity was taken by that evil tank commander! He doesn't even see me as a person~"
Yukari was already enjoying herself, but if this much fun could be had with such 'simple' play, surely she could accomplish more. She laid on her back, holding the tank in the air with one hand so she could use it as a conventional dildo, while she rolled the other one up to her ass. Taking a moment to exhale and relax, she plunged it forward, allowing herself to be double-penetrated by the Dark Enlightenment of Polish Fascism.* "Ah, my liberties~!"
Meanwhile, just outside the door, walking up to it was Miho Nishizumi, a friend of the girl currently using a toy tank to masturbate. They'd agreed to meet up later to discuss some plans for the upcoming battle, but given that Yukari could show to forget things at times, Miho was just about to remind her.
Sending a text, she waited outside the door for a response, before she heard what sounded like shouting from inside, though she couldn't quite make out what it was saying. She waited another few minutes for some sort of response, but when none came, she began to grow worried.
Grasping the doorknob, she was surprised to find it unlocked, and opened the door, stepping inside. "Yukari, I'm here to discuss our plans-"
The girl had started speaking but had immediately cut herself off as she walked down the hall to the girl's bedroom and stepped inside, pausing at the doorway at what she saw before her. "A-Ah…!"
Yukari slid both tanks out of her, threw them under the bed, sat up, and pulled her skirt over her exposed genitalia. "Miss Nishizumi! I was absolutely not pleasuring myself with the Polish 7TP with double turrets!"
"I…I, uh…" Miho's face was beet red as she couldn't help but stare between the girl's legs. "Did you…want me to come back later, or…?"
No, no, no! Yukari's mind went into panic. Miho couldn't know how much of a degenerate pervert she was! It was one think to be a sensha-do fanatic, it was another thing to be a freak who got off to the (undeniable) eroticism of mechanial engineering! "No, of course not, there's nothing wrong! What was it you needed?"
"I…well, we were going to discuss battle plans, and I figured you'd forgotten, but…" Miho felt very hot as she couldn't get that image out of her mind, her body gently swaying as she felt a tingle between her legs. "Um…you were…m-masturbating, weren't you?"
"Nope, nope!" Yukari replied as she stood up. When all else fails, just gaslight 'em! That's what mother always said. "I would love to discuss battle plans, I was actually thinking of ways to penetrate enemy posit-I mean... er..."
"Yukari, it's okay to admit it, it's not like…it's not like I don't do it too…"
'Even if I don't do it using toy tanks' she thought to herself.
Yukari let her head drop and sighed. "Okay... sorry for being so crude... Miss. Nishizumi..."
"I-It's fine! Really! I just…do you usually use those…the tanks for it?"
Yukari's blush only grew stronger as she wrung her hands and shifted on her feet. "Y-yes..."
"Did you want to continue?"
"Y-you can't ask someone that!"
"But do you? I mean…I wouldn't mind," Miho said surprisingly calmly, though her cheeks were still red.
"Ah, it's like in World War One, when soldiers would masturbate in groups!" Yukari declared before sitting down. "I-I guess such an... act of tribute would... would be respectful?"
"I…what? I don't think that was a thing…was it?"
"Absolutely!" Yukari replied as she pulled one of the tanks back out. "Because of the agony of trench warfare, soldiers would grow so bored and lonely that they didn't mind circlejerking like that. In fact, some would help each other out."
"Really?" Miho asked in surprise, though the idea of such a thing didn't help the growing ache between her legs. "So, then…if I were to ask to help…"
Yukari let out a squeal and flopped backwards onto the ground, inadvertently flipping up her skirt and showing her moist pussy to Miho as she covered her face. "Ah! Is Miss Nishizumi really asking me-"
"I'll take that as a yes…" Miho said as she walked over and sat down behind Yukari, pulling her back into her lap. "Mind if I do it like this? It'll probably be more comfortable that way."
"Ah, yes, yes!" Yukari replied with clear joy, even as she squirmed and covered her face.
"Okay. I've never done this with another girl, so…be patient with me."
With that warning, Miho reached her hand down and gently pressed it against Yukari's already wet lips, feeling their softness almost immediately in a way that made her shudder against the other girl's back.
"Ah, Miss Nishizumi~" Yukari moaned. "So forward~"
"Let me know if I'm doing something wrong," Miho said as she continued, her finger gliding between the folds as she moved it up and down, slickening her finger with the girl's dampness. "Th-This is…this feels so nice…different from mine somehow…"
"Ah, this does feel nice~" Yukari replied as she nuzzled back against Miho's body, delighting in the feeling of her modest chest against her own back. "You're already so good at this~"
"Mmmm," was all Miho replied as she wiggled her finger inside at the same time her other hand, which felt like it was moving on its own, went up to Yukari's chest and wrapped around her breast, squeezing through her clothes.
"Ah, ah~!" Yukari squeaked. "So aggressive, it feels like you're trying to pull my boob off, hehe~"
"Is it good?" Miho questioned, her tone slightly different from before as she continued groping at her chest somewhat harshly at the same time her finger slipped completely inside, completely coating it as she slowly started to thrust.
"Yes, yes!" Yukari panted in time with each thrust. "You're so confident!"
"Mmm," she responded as she reached up and brushed aside her top enough to expose her neck, and as her hand moved back down, this time slipping underneath her shirt, and placed her lips over Yukari's neck and began to kiss it.
Yukari cringed up as much as she could as her hips bucked against Miho's hand. "Ah, ah! Miss Nishizumi is such a pervert~!"
"You're the one masturbating with tank toys," Miho said before biting down gently on her neck. Her fingers brushed against Yukari's bare chest as her thrusting increased in speed.
Humiliation and a shot of pain ran through Yukari's body, causing her to quiver even harder against Miho's touch. She could feel her orgasm growing closer and closer as Miho's pace never let up. "Ah, so rough, so rough!"
The girl wasted no time in slipping in a second finger as she harshly grasped her breast, the two of them leaning forward as she sucked on her neck, rubbing her own chest into the girl's back for her own stimulation.
It wasn't long until Yukari came around Miho's hand, letting the commander feel the other girl clench down around her fingers and release her fluids onto their skirts. Yukari let out a shrill, drawn-out moan as she bucked against Miho's hand, trying her hardest to milk every bit of pleasure she could out of Miho's treatment of her.
Miho waited until she was completely done before retracting her hands, her own arousal coursing through her by this point. "Yukari…I'm also feeling-"
Yukari giggled and rolled over onto the ground, seemingly so lost in her own pleasure that she couldn't even hear Miho.
"Yukari…" Miho said again as she loomed over the girl and grabbed her arms to hold her still. "Yukari…I need you to do me as well."
Yukari seemed to shudder a bit, being brought back to Earth by how stern Miho was. "I-I-I will, Miss Nishizumi."
Miho nodded and stood up, almost looking down her nose at Yukari as she began to undo her skirt. "However…I want you to do it very specifically, okay?" The skirt dropped to the floor, and was soon followed by her shirt, leaving her dressed in only her underwear. "You'll do exactly what I say, okay?"
Yukari saluted, even as her eyes didn't move from the wet spot on Miho's panties. "Yes, commander!"
Miho nodded as she reached behind her back and dropped the bra as well, tossing it aside before doing the same to her panties, where her arousal was completely obvious by this point as she stood over Yukari. "You're going to use your mouth, and grope my chest at the same time. I want you to just grope the first, and then move on to my nipples, got it?" Miho herself wasn't very sure what had come over her at that moment, but she felt good speaking the words so sternly.
"Y-yes! Operation Sexy Times will be done properly!" Yukari replied as she scrambled to her feet.
Miho gave a nod before taking a deep breath, and nearly slamming her groin onto Yukari's face.
Miho gave a nod before taking a deep breath, and, after taking a moment to push Yukari on the floor, dropping to her knees at the same time, she practically slammed her groin onto Yukari's face.
Yukari had to ignore the pain in her ass to get to work, awkwardly reaching up her hands to paw at Miho's chest as she licked and sucked at Miho's pussy, delighting in the feeling of pleasuring her commander.
She wasn't sure if it was the actions of the girl beneath her or the sense of control she felt, but Miho felt a moan escape her lips as pleasure washed over her like a crashing wave, and she started moving her hips slightly, to increase it further.
Yukari let her hands focus on the periphery of Miho's chest, before steadily maker her way to the center so she could pinch her commander's nipples. At the same time, she moved up slightly, and began to suckle on Miho's clit.
"Ahhhh~! Yes, just like that~!" Miho praised Yukari as she kept moving her hips, already feeling pressure building in her core that she would hold onto for as long as possible.
Miho's praise warmed Yukari's heart as she got more aggressive, pulling on Miho's chest and harshly suckling at her pussy in an attempt to rip an orgasm out of her commander.
Despite Miho's desire to drag it out as long as she could, she was already feeling her body tensing up in preparation. Her breathing became labored as she looked down at Yukari. The sight of the girl's eyes and gorgeous locks between her legs was so hot that she nearly came then and there. She was struggling to hold on though, despite her commanding words earlier, and her body began to tremble.
Yes, yes, yes, Yukari thought as she kept the pace steady and aggressive. Making Miss Nishizumi orgasm was probably the most fun duty she had ever been given, and that included that time that she had to clean the grease out of the tank treads.
Finally, she couldn't take it anymore, and Miho erupted, spilling her fluids onto Yukari's face as she let out the loudest moan so far, her body shaking with the effort as it came out so explosively, lasting several seconds before she slumped, panting.
Yukari let Miho slump off of her as she let out a moan. "That... was almost as fun as sensha-do..."