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Haruhiko left the Hope's Peak Academy school building feeling downcast. It was just terrible luck that the test retake for those with low scores just happened to occur on his birthday. He bet it was Yuki's fault, that bastard. Haru still owed him 3000 yen, he assumed that it wasn't a coincidence.
At the very least, he hoped that he would get a higher score than last time, even if he wasn't good at studying at all. At least Haru was going to visit his girlfriend in her dorm, and he hoped that the rest of his birthday would be a good day!
...Those were the thoughts that got suddenly dashed when he spotted Keisuke's car in the student parking lot outside of the academy's walls. If he was going to see Satsuki, then an encounter with her oldest brother would be inevitable. Haru decided to bite the bullet and go look for her brother, hoping that he wouldn't make any kind of bad impression without Satsuki there to distract Keisuke.
Haru walked over to the academy's walls and found Keisuke with a box in his hands, bickering with the security guards about his identification. Haru threw his bag over his shoulder and ran over to intervene. "Hey, hold on! He's my girlfriend's brother, I know him," he told the guards.
"Oh, Haruhiko. Great timing," Keisuke spoke up. "I guess I'm not allowed inside as a family visitor because my driver's license expired recently. Could you deliver something for Satsuki for me? It's just a bunch of care supplies, things like hygienic products and such."
"Yep, no problem. I was planning to visit her anyway. She never showed up for the test retake, so I wanted to check on her," Haru replied, taking the box from him with a smile.
But Keisuke wasn't finished. "I heard it was your birthday, so I put in some food coupons in the box for you guys. Use them sparingly, okay?"
"Thanks, you're the best!" the pilot smiled, nodding to him in gratitude. "I'll see you around!"
Haru left the gates with the box in his arms, and he resumed his trip to check on Satsuki. While he disliked having to go up many stairs, he managed to get to her door and kicked the bottom of it. "Satsuki! I'm here!" he called inside, hoping that she was awake.
"The door's unlocked!" he heard her call back, and he shifted the box to between his arm and his hip temporarily so he could open the door. But once he pushed open the door and stepped inside, he was met with a surprising sight.
Satsuki was standing on the table with two presents next to her, wearing nothing but pink and blue thigh-high socks with white polka dots. "Surprise! Happy birthday, Koba-chin!" she happily exclaimed as she saw him.
Haru could feel a sudden nosebleed appear as she stared at her dumbly, and his blood began rushing downwards in his body. He was broken out of his stupor by the sound of the heavy door closing behind him.
"O-Oh, yeah! It's my birthday, thank you!" Haru stammered out, regaining some awareness as his girlfriend giggled and jumped off the table. "Uh, you're only in your stockings...? Don't get me wrong, I'm not complaining!"
"Kiyoka came by yesterday with an outfit that she thought I should wear." Satsuki's expression turned to a pout. "But when I put them on today, the rest of the clothes were uncomfortable. So I took them off!"
Haru walked around her and put the box on the table, then went to look for a tissue. He had bought himself some new clothes for his birthday, so he didn't want any blood stains on them. "You didn't show up to the test retake. Were you preparing this surprise for me?" he asked, wiping his nose with a tissue.
"Well, kinda! Actually, Teruya had a surprise party a few hours ago, but he said that 'it would be more of a surprise not to invite the main character to the surprise party', so he never invited you. The cake is gone, and your presents will be brought here later, I think."
"I'm gonna kill that bastard," Haru sighed as he threw away the tissue and mourned the loss of potentially getting cake.
"But! Satsuki decided to set up a small surprise party here for Koba-chin anyway with her own presents!" the clown added, motioning to the presents on the table.
Haru looked over at the presents, which he noticed were wrapped shoddily with tape, but still waiting on the table for him. Even after the 'surprise party', she had even waited for him to arrive for a small party of her own. "Satsuki...you really are best girl..."
Satsuki suddenly crashed into him for a hug before he could act. "Aww, Koba-chin is the best! Hehe!" she giggled, and Haru prayed to any god to make the bulge in his pants go down as her mostly-naked body pressed up against him.
"U-Umm, anyway! That box on the table is from your brother, he wanted me to give it to you," Haru explained, deciding to leave out the part where he was getting bothered by security. "He said it had, uh, hygienic products and stuff, and he gave us coupons for my birthday. We can go out and eat tonight!"
"Huh? Satsuki didn't think that Koba-chin was planning to walk around with a third leg like that!" she teased, to his sudden embarrassment. She reached forward and grabbed the bulge in his pants, and teasingly squeezed it while saying, "Honk, honk!"
Haru quickly put a hand over his mouth to cover up any sounds he could make. He couldn't deny that the touch to his cock felt good, even if it was just squeezes. "Hey, Satsuki..."
"Hm? Does Koba-chin want to have sex again? Didn't we already do it last night?" the clown huffed good-naturedly. "But if it's Koba-chin's birthday and it's fun, then sure!"
That was not what Haru was going to ask, but he wasn't planning on missing this opportunity at all. "Okay! Sure, let's go!" he agreed, and quickly began heading to Satsuki's bedroom. He arrived there first, but when he turned around to wonder why Satsuki was so slow, the clown tackled him onto the mattress.
Even if she was incredibly smaller and lighter than he was, the sudden impact caught Haru off-guard. When he looked up from the mattress, he spotted Satsuki enthusiastically sitting on his chest.
"So, what are we going to do first, Koba-chin?" she asked, her eyes bright and cheerful as she looked down at him.
"Well... Hey, if you move forward a little, then maybe I could get a meal better than cake?" Haru joked.
"Don't insult cake!" Satsuki protested. Nonetheless, she moved up his chest, where he could see her slit right above him. He reached up and grabbed her hips, pulling her down onto his mouth as he heard a small squeak of surprise from her.
Haru started lapping at her, and his tongue began to go deeper into her folds. Satsuki put a hand on the bed to steady herself and another over her mouth as her breathing started to become heavier. The pilot continued to explore with his tongue, and he felt his girlfriend tremble as his tongue flicked over her clit.
Seeing her reaction to that sensation, he began lightly sucking on her clit and heard a small gasp. That gasp turned into quiet moans, and Haru decided that he should start licking deeper into her. Satsuki was disappointed that he had stopped, but didn't have to wait for long.
As she felt his tongue lap inside her and his sucking at her sensitive spots in turn, she felt her abdomen heating up as waves of pleasure began to ripple through her body. Her heart rate began to speed up along with her breathing, and she felt her muscles start tightening up.
"A-Ah! Satsuki is almost finished!" she cried, her grip tightening on the bedsheets as her balance wavered slightly. When her climax finally arrived, it was only her experience as an acrobat that allowed her to keep her balance as her vision went white. Haru kept licking at her throughout as she rode it out.
When she finally came back to reality, her muscles weakened and her weight fell back onto Haru's chest, away from his mouth. The pilot quickly wiped off his mouth, and he moved her hips to his lap as he sat up. From how his girlfriend looked, she likely needed a couple minutes to recover. Even so, he decided to not waste that time.
Haru reached around her and put her hands on her ass, giving it a squeeze as she moved her hips a bit. He leaned forward and kissed the nape of her neck, then gently bit down and sucked a red mark there. Satsuki managed to straighten herself up and wrap her arms around her neck, closing her eyes and enjoying the sensations.
He began moving farther down as he continued his cycle of kissing, leaving a hickey, and occasionally licking the mark too. When he finally pulled back after a few minutes, Satsuki's neck, chest, and collarbone were covered in red marks.
"O-Okay, Koba-chin! My turn!" Satsuki suddenly exclaimed, sitting up and beginning to struggling with getting the pilot's underwear off. Haru was surprised that she managed to recover so quickly, but he figured that it might just be clown genes...or something. Either way, he lifted his hips and helped her with removing his underwear.
When they were removed and his fully-erect cock sprang up, Satsuki forced Haru's hands back. "Okay, let's go!" she happily announced, and she lifted her hips up. Grabbing the base of his cock to help her aim better, she lowered herself onto him with a small gasp. As she began her wait to adjust to the size, she let go of him and put her hands on his shoulders instead.
"Uh, there's a bit of hair in your face," Haru noticed, quickly brushing it out of the way. Satsuki noticed that his nose started bleeding again and bit back her giggles. Haru didn't comment on it this time, thinking that her smile was a precious thing.
Finally, Satsuki looked back at her legs and began to move, rhythmically bouncing up and down at a slow pace at first. But as her wetness began to lubricate his cock's consistent path within her, the clown's movements began to speed up. Occasionally, she had to pause and shift her weight a bit, but she would get right back into a quick pace soon enough.
As Satsuki kept riding his painfully-erect cock, Haru's eyes became half-lidded as the pleasure in his loins increased. At this rate, he knew that it probably wouldn't be long before he ended up reaching his own climax as well. He readjusted his hold on the bedsheets as he watched her.
His girlfriend finally stopped taking breaks and kept up a fast pace, even if she was making her own body's nerves feel like they were in fire. Already sensitive from one orgasm, she resolved herself to keep going until she and her boyfriend were both satisfied.
Haru ended up finishing first, and she felt him spilling inside of her. As she rocked her hips and started slowing her tempo, Satsuki let out a quieter cry as a less intense orgasm than before pulsed through her. She fell forward onto Haru, who placed a hand on her back to steady her.
By the time their climaxes had faded away, they were both tired. Satsuki lifted herself off from Haru, and he had a moment of lucidity when he remembered that he didn't wear a condom. He's have to find some kind of birth control soon, since if Keisuke found out that Satsuki was pregnant before she even graduated, he wouldn't live to see his next birthday.
His thoughts were suddenly interrupted when he felt Satsuki nestle herself under his arm and snuggle close to him. Her legs wrapped around his, and the fabric from her thigh-highs rubbed against his bare legs.
"Mmn... Happy birthday, Haruuu..." Satsuki quietly drawled as exhaustion began to overtake her. "I love youuuu..."
Haru felt her body relax on his arm as he smiled. He couldn't move now, he'd have to open those presents later. He guessed that she had fallen asleep already, but even so...
"I love you too."