It was a momentous day. Operation MI had ended in a complete success for the fleetgirls of the naval base, the Abyssal forces completely routed. Without suffering a single casualty the girls and women of the mission had won a great victory for their friends and for humanity, and had returned to the base to celebrate. The battleships, the destroyers, the carriers and the cruisers, they all had a great reason to be happy this day. From Truk to the home district, every shipgirl in the fleet was celebrating.
"Hawawa, we won! I can't believe we won!" Inazuma shouted, her and her friends in Destroyer Division Six all holding hands and jumping in place. "Seems like just yesterday we were competing in that curry contest and now here we are! I bet the commander is so proud of us!"
"I told you all you could rely on me! Now let's all go to Mamiya-san's to celebrate, I'm starving!"
"A lady does not jump for joy! My skirt's fluttering!"
"Khorosho."
While Hibiki was just as overjoyed as her sisters were, she was also feeling a tad aroused. It'd been a few days since her last orgasm, and while the operation had been sufficient to distract her from her desires, now that it was over it was all she could think about.
Onaholes and handjobs were nice, but Hibiki was feeling a bit bolder following the day's victory, and wanted something more. Her and her sisters stopped jumping and Hibiki looked around the waterfront, countless fleetgirls all celebrating in their own ways. There were plenty of volunteers among them, but Hibiki wasn't quite up to asking someone for sex with so many spectators around.
"I have to go take care of something. See you later, girls" Hibiki said, and her sisters all bid her farewell. Hibiki took off towards the repair bays, spotting a few fleetgirls heading there too. If nothing else it'd be nice to change into clothes that didn't smell of saltwater, so she had more than one reason to go. She headed straight for her locker just as a few girls headed into the baths, so she was more or less by herself. She stripped out of her shirt and skirt and folded them for laundry, and reached for her spare when she heard someone else come in.
"Well hey, Hibiki-chan! What are you up to?" the girl, I-19, said. Hibiki nodded at her and was about to grab her spare uniform when a thought occurred to her. She shut her locker door and approached Iku, who had her hands folded behind her back and a smile on her face.
"Hello Iku-chan, how are you and the other subs?" Hibiki asked, and Iku grinned.
"We're doing great. We just got back from the operation; you might not have seen us, but we were there! What a fight it was, too! You gonna go hit up an onahole now? I can see your cock straining against your panties!" Iku said, and Hibiki nodded.
"I'd like to have sex with you, actually. Let's go somewhere comfortable" Hibiki said, and Iku grinned again. There was a break room near the docks and Iku followed her close behind. The two of them ventured into the room and Hibiki headed for the couch.
"You know what I have marks for, so what'll it be?" Iku asked, and Hibiki gestured towards the couch. Iku sat down in front of Hibiki and reached for the waistband of Hibiki's panties, and Hibiki gently grabbed her wrist.
"Bend over the armrest, please. I want to have anal sex with you" Hibiki said, and Iku's grin grew wider. She stripped her swimsuit off and bent over the armrest, her knees on the cushions and her arms propping her up. She wiggled her butt and Hibiki removed her panties and the bandaids on her nipples(small as she was, a bra wasn't necessary). She removed Iku's plug and firmly pushed her cock into the other girl's bottom.
"Nnnn is this your first time drilling a girl's butt? You're gonna love it, it's so intense!" Iku said as Hibiki began to slowly thrust, her hands on Iku's hips. It was pleasant, very pleasant, and much different from an onahole or a handjob. She was a little clumsy, not used to thrusting into something that was also moving, but the pleasure was unlike anything she'd felt thus far, so it was enough to encourage her to do her best.
"You're very tight. It feels good" Hibiki said, and she shut her eyes. She let out a content sigh, finding Iku's warmth just as pleasing as the sensations travelling up and down her shaft. She pulled her cock out with a *pop* and rubbed it up and down Iku's buttcrack, precum drooling out all the way.
"Ehehe, you really like my butt, huh? You gotta hair trigger? Is that why you pulled out?" Iku asked.
"No." Hibiki plunged her cock back into Iku's bottom and Iku let out a gleeful squeal, and Hibiki sighed again. She squeezed Iku's hips and butt, pulling her cheeks apart to get more of her cock into the other girl. "I do like your tushy, though."
"Ehehe, 'tushy.' You're cute, Hibiki. Your little cock feels great in my butt; it's a shame so few of the volunteers like anal, since it feels so great. A lot of the futagirls don't like anal either, which is so- OH!"
Hibiki had reached around to rub Iku's pussy, finding it rather slick. "I have a small penis?" she asked with a tiny smirk, knowing that Iku would hear it more than see it. It was a little difficult to reach Iku's pussy and focus on rubbing her while also thrusting in and out of her butt, but Hibiki could manage.
"Of course you do! It's only four inches, but that's OK! It's all about your skill and technique! Or, you could just only ever ask to get it sucked or stick it in a girl's ass, and then it won't matter!" Iku said, and Hibiki picked up her pace a bit. Hibiki wasn't self-conscious about her size, but she was curious to see how much of her composure Iku could maintain while getting stimulated on two fronts.
"You're lasting a l-long time, huh?" Iku said, and Hibiki hummed an acknowledgment. As great as it felt she was definitely no where near her climax, which was just fine with her. She enjoyed longer sessions and always wanted to get as most out of them as possible, but she was a little surprised that she was lasting as long as she was, given it was her true first time. She'd gotten plenty of handjobs, but they were nothing like the real thing, so she figured she had more stamina than she knew.
"You feel really good, Iku-chan. Are you getting close?" Hibiki said, and she pulled her hand away from Iku's pussy and put it back on her hip, the hand sticky with Iku's fluids. She stuck a few of her fingers into her mouth on a whim, wanting to see what it tasted like, and found it rather pleasant. "You taste good."
Iku shuddered and let out a moan and she moved to start rubbing herself, picking up where Hibiki had left off. "You t-tasted me? What a naughty girl~" Iku said, and Hibiki wondered just how close the submarine girl was to cumming. "I'll have to punish you for- For that~"
"I don't like being spanked" Hibiki commented, and gave Iku's bottom a light slap, earning a yelp. She could feel Iku's juices on her balls and picked up her thrusting again, steadily sinking her cock in and out, back and forth, and she was beginning to pant. "Maybe I'll spank you, though."
"You wanna spank me? You r-really are a naughty girl~! It's always the quiet ones, eh? Ehehe~" Iku said, her head hung and her hands gripping the armrest. Hibiki went back to squeezing and kneading Iku's butt, rubbing her hands up and down the plump little cheeks.
"You have such a nice bottom, I don't believe the other futagirls don't like anal" Hibiki said, her body coated in a light sheen of sweat. Her toes curled and uncurled, and her pace was starting to become erratic.
"W-Well, they don't ask me for it very often. Most of the time they- They want it in my pussy or my mouth, and they always want to- Nnnn... Want to kiss me when they stick it in my pussy. They... They...! Hi- HibikiiiiiiiIIIII~!" Iku yelled, and she covered her mouth with a hand. She screamed and Hibiki could feel her pussy tighten up even through her butt, and Hibiki leaned her head back, a smile on her face. Her cock flexed and flared, and her panting was constant now.
Iku's hand dropped from her mouth and she was still moaning, completely breathless. Hibiki pulled her cock out, the tip kissing Iku's butthole, and sank it back in. She looked down at Iku's backside and marveled at the girl's tiny plump butt, and she smiled again. She pushed herself all the way in, closed her eyes, held her mouth shut, her chin against her collar, and she came. Her cum spurted out hard in thin ropes, and her butthole contracted hard along with her cock. Her hands squeezed Iku's butt tighter and tighter, and as her orgasm died down she blew out a breath. She left her cock inside Iku for a few moments more, to make sure every drop of her spunk was in the other girl, her body trembling.
"...Thank you" Hibiki said, her cock wedged up in Iku's buttcrack, and licked her lips. She pulled her hips back, her cock kissing and grazing Iku's butthole, and stroked her still hard cock a bit. She was spent, but it'd still be a few minutes more before she softened up.
Iku turned and sat down on the couch, breathing deep. "Thank you, Hibiki! That was one of the best orgasms I've had in a while. Who knew you were so good? You wanna cuddle? Or are you gonna go take a shower?" Iku asked, and Hibiki sat down next to her.
"Kinda tired. We can cuddle, if that's what you'd like" Hibiki said, and Iku nodded. The two of them snuggled up together on the couch, Iku on top of Hibiki. Her softened cock rubbing against Iku's thigh, and the two of them smiled. Hibiki looked at Iku's lips, and a thought occurred to her. "You said the other girls always want to kiss you. Can I?"
Iku nodded. "I never said I didn't like kissing! You can kiss me all you want, cutie." She leaned down and their lips met, and Hibiki let out a quiet hum of appreciation. They shared a few more tender kisses before Iku pulled back, a hand on one of Hibiki's cheeks.
"Glad you had fun, Hibiki! I can't wait to have sex with you again! I'm not tired, but I'll cuddle with you until you fall asleep, 'kay?" Iku asked, and Hibiki nodded.
"Khorosho. So long as you're still here when I wake up" Hibiki said, and Iku grinned.
"Whether it's a bed or couch, I won't let my partner wake up alone. Sleep tight, cutie!" Iku said, and she kissed Hibiki again. Hibiki wrapped her arms around Iku and settled into the couch, and it wasn't long until she was fast asleep, her mouth slightly agape, and Iku smiled at just how cute the destroyer girl was. With a quiet, gleeful hum, Iku got comfortable on Hibiki and just breathed while watching the other girl sleep, happy and content.