"Hatsuyuki-chan-poooiii!"
Yuudachi ran down the beach to where Hatsuyuki was lying on her stomach, reading a book, leaving Fubuki and Mutsuki behind. Yuudachi squatted down next to Hatsuyuki and leaned towards her ear. "Is it OK if I, like, stick it in your butt, Hatsuyuki-chan? I'm like suuuper horny-poi" Yuudachi whispered.
"That's fine."
Yuudachi smiled and shimmied back until she was squatting over Hatsuyuki, a foot on either side of her body. She quickly tugged Hatsuyuki's yellow bikini bottom down just enough to expose her plump bottom. Yuudachi eagerly reached under her skirt, pulled her cock out, and pulled the lube plug out of Hatsuyuki. She eased her twitching cock into Hatsuyuki until she'd bottomed out. After a moment to let Hatsuyuki adjust Yuudachi began thrusting.
"Mmmm Hatsuyuki-chan is like so tight and warm. This is like so much fun-poi" Yuudachi said, her chin resting on top of Hatsuyuki's head. This was Yuudachi's favorite position, squatting over a cute shipgirl and pivoting her hips up and down to thrust in and out. She was able to push in so deep like this, and it felt so intimate to her. Chest to back, hip to butt, her face buried in the other girl's hair or neck, Yuudachi loved it.
"Whatcha reading-poi" Yuudachi asked as her cock slid back and forth, in and out, of Hatsuyuki's bottom. She wondered how long she'd last, the feeling was always so intense. Her balls were already pulled tight to her body, the plump sack slapping against Hatsuyuki's cheeks.
"A manga" Hatsuyuki replied. It amazed Yuudachi that Hatsuyuki was always able to remain focused on whatever she was doing when someone was having sex with her, but that was partially why Yuudachi loved doing it with Hatsuyuki so much; she was almost like an onahole, just more lively. She'd pant or moan quietly, squirm or writhe, even smile every so often.
"Is it good-poi? Nnn, you feel, like, sooo amazing" Yuudachi cooed. She knew now that she wasn't going to last long, but that didn't matter much to Yuudachi; she'd just go for a second round. "Gonna cum soon, Hatsuyuki-chan~"
"That's nice. The manga's good. I'm halfway through it."
"Not as good as, like, your tight little tushy, I'm sure. I can't wait to like fill it with my cum-poi" Yuudachi said, her pace harder and faster. She was in complete bliss, her eyes closed, a smile on her face. "You're my favorite, Hatsuyuki-chan, you feel so good-poi. I love pumping your butt, Hatsuyuki-chan."
"I know."
Yuudachi put her hands on Hatsuyuki's shoulders and planted her face in Hatsuyuki's hair. She started whimpering in pleasure as her orgasm rapidly approached, her thoughts nothing but a lustful haze as her nose drank in the scent of Hatsuyuki's shampoo. "Cum! Gonna cum! Hatsuyukiiii!" Yuudachi hissed. She buried her shaft into Hatsuyuki's butt as far as she could and struggled to keep quiet as her load spurted out into the other girl. She curled her toes into the sand and felt her fingernails dig in to Hatsuyuki's shoulders.
"Nnn, that felt sooooo good-poi. Thank you, Hatsuyuki-chan" Yuudachi said with a kiss to the back of Hatsuyuki's neck, her orgasm sadly over. Yuudachi slowly pulled out of her fellow shipgirl's bottom, the tip of her cock pressed against Hatsuyuki's butthole. At once Yuudachi reached back and began stroking her still hard cock; she wasn't done yet. She got off her feet and instead opted to rest on her knees as she jerked off.
"Going again? Don't take too long" Hatsuyuki said.
Yuudachi giggled. "It, like, won't take me long at all to cum again-poi. Not with my cock smushed up against your tiny butt-poi." The lube from the plug was still thick enough to help Yuudachi along as she jerked off, her tip already flaring, her body crying for her to stick it back into Hatsuyuki. Yuudachi ignored it, wanting to spurt her seed onto the little hills of Hatsuyuki's bottom.
"Hmmm-mmm, feels so good-poi" Yuudachi said as she used her free hand to play with Hatsuyuki's butt. So firm, so plump Yuudachi thought, her fingers stroking along the cheeks. "You have, like, the best butt on the base, Hatsuyuki-chan-poi."
"Thank you."
Yuudachi leaned her head back, shut her eyes, and focused in on the pleasure. The smell of seawater, the warmth of the sun on her face, the sound of her panting mingling with the waves. She could feel her precum leaking out into Hatsuyuki's buttcrack, she was almost to release again. "Hatsuyuki-chan... Hatsuyuki-chan~ Mmm. Poooii... Pooooiii..." Yuudachi breathed, her panting hard and deep.
"Are you going to cum on my behind or in it?" Hatsuyuki asked.
"Ah- On~ On, Hatsuyuki, I'm gonna cum on you! Mmm! Po- Oh gosh, oh! Mmmnnnngg~" Yuudachi groaned as her load pumped out into Hatsuyuki's crack, her cock surging hard in her hand as her balls emptied themselves again. "Fwah... Ah... Mmm. Thank you again, Hatsuyuki-chan~"
"Sure. Don't forget to clean me off, Yuudachi-chan."
Yuudachi collapsed back onto her own bottom, the last of her cum leaking down her stiff member. She took a few moments to catch her breath before she decided to go one last time. She wrapped her hand around her cock and began rapidly stroking again, her balls already pulling back up again.
"You're so needy" Hatsuyuki commented, and Yuudachi moaned. A tiny amount of precum beaded at her tip, her body at the limits of what it could produce. She leaned forward and came for a third time, a small amount of cum pooling out onto both of Hatsuyuki's buttcheeks. When her third orgasm ended Yuudachi collapsed to her hands and knees, completely out of breath. She shakily pulled a few tissues out of her skirt's pockets and set about cleaning Hatsuyuki off. Thankfully she'd pumped her biggest load out inside Hatsuyuki, and most of the second load had run off into the sand. Some of it had covered a bit of Hatsuyuki's pussy, which Yuudachi was careful to clean as well. When she was done she gently placed the lubricating plug back into Hatsuyuki's anus, and gently patted the other girl's bottom.
"All done, poi!" Yuudachi said. She pulled Hatsuyuki's bikini bottom back up for her and gave her a kiss on the cheek. "Thank you again, Hatsuyuki-chan! I, like, love you!" Yuudachi said.
Hatsuyuki nodded. "I love you too, Yuudachi-chan. Thanks for cleaning me up and all that." She closed her manga, her eyes, and lied her head down on her arms. "Gonna nap now, Yuudachi-chan. Later."
"Bye Hatsuyuki-chan! Sleep tight, poi!" Yuudachi said, and took off, happy as could be.