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ごちそうさますぎだろ(Seima ver) (Pixiv Fanbox)

Published:
2025-09-01 11:27:07
Edited:
2025-09-01 23:55:40
Imported:
2026-06
Tags:

Content
















잠결이라도 장난꾸러기 따위 순식간에 제압하는 세실리아

寝ぼけていても、いたずらっ子なんて一瞬で制圧するセシリア

Even in her sleep, Secilia can subdue a prankster in an instant

Files

Comments

Sharfak

Can't wait for Seima to get confident about those situations!

Aldyn

Amazing, glad to see seima gets to have some fun as well. Will these versions with seima be in the game?

Star36

Secillia must be so happy that Seima came to spend time her. I'm betting she's overjoyed right now.

くら

セイマが、セリアとセシリアにエッチなイタズラをするストーリーが本当に好きです！ セリアとセシリアも、セイマに対し、嬉しそうにエッチなイタズラを返す反応が最高です！

Domonstrane

Buttcheeks sticking out of dolphine shorts because the ass is too fat is insanely hot. Thank you Kishi, as always.

CJ

[Curiosity] Since Secilia returned home from adventuring, Seima's body has been reacting to her new sexy body. His penis has been getting big and uncomfortable, which he is not used to. He's been shy to show this to Secilia, but he's also been curious about her body. Seima was taking a bath after training when a naked Secilia entered. Sei: "!!" Sec: "We had a good training session today. It's time to relax with a bath." Her breasts swayed from side to side as she got into the bath. Seima thought about leaving, but Secilia's body blocked him. Sec: "Here, I'll wash your hair." Seima's head rested between her breasts as she washed his hair. His butt sat on her thick thighs. His penis quickly got big, and it was throbbing as it stuck out the water. Sei: "!!" Sec: "!!" This was her first time seeing Seima with an erection. She chose not to mention it, and continued washing his body like normal. Afterwards, Secilia went to the library and read about things like puberty, erections, and sex.

CJ
>>10098527

Sec: "Seima is becoming a man.." She was a bit concerned that her body was forcing this change onto her brother, and wondered how she could help. That night, Seima laid in bed thinking about how soft his sister's breasts and thighs felt. Thinking about touching them again made his erection ache. He couldn't sleep at all thinking about her body, so he sneaked into her room. Sei: "S-Secil-nee..?" She was sound asleep. Her nipples poked through her thin shirt. His erection and sexual frustration gave him a mischievous idea. Sei: (I've seen her naked many times.. She wouldn't care, right..?) Soon, he was pulling off her tank top. Her heavy breasts fell out and made a plopping sound as it landed on her belly. While he was greedily massaging her breasts with his left hand, he was pulling down her shorts and panties with his right hand. A wave of heat came off her fat pussy. Seima had no idea about sex, but the sight of his sleeping naked sister made him go crazy.

CJ
>>10098528

He was rubbing his face between her breasts as he continued to grope her breasts and thighs. His sister continued to sleep soundly, so he got even rougher, kissing her nipples and rubbing her hot wet pussy with one hand. Sei: (I need to show her my penis..!) He took off his underwear and sat on her breasts, his erection hitting her face. His tip rubbed into her soft lips, precum dribbling into her mouth. The feel of her soft lips made his penis feel very good. The smell and taste of Seima seemed to wake Secilia up gradually. Sei: "!!" Sec: "..?" Her eyes opened slowly, and she didn't seem to mind the fact that she was naked, or that her brother's penis was rubbing into her mouth. Sei: "Um.. I can explain..!" But without saying a word, Secilia flipped Seima on his back and started kissing his tip and licking up the precum dribbling off his penis hole. Sei: "!!" Seeing how his face and body seemed to be in pleasure, Secilia kissed his tip more powerfully, and began to swallow his tip

CJ
>>10098529

Sec: (This is called a blowjob..) She read about it in a book earlier. She held both his shaking hands to stop him from pushing her face away. Her face made a grotesque expression as she began to swallow more and more of his penis. Her lips and mouth formed a vacuum as she sucked powerfully while pulling his penis out. Seima could only tolerate this blowjob for a minute before he ejaculated for the first time, shooting ropes of stored semen into her throat. This was his first orgasm, and represented all his sexual frustration from the past few weeks. Secilia continued to suck at a steady pace until the semen slowed down. She did not flinch at the taste of his semen at all, and didn't find it disgusting. Sec: (This is called ejaculation.. and semen..) Sec: *phwuah* Seima's penis fell out of her mouth, and he still maintained an erection. Sec: "Did that feel good at all, Sei..?" She was curious to hear if he liked it. She rubbed his penis tip against her nipple to maintain his erection

CJ
>>10098530

Sei: "!! Um.. yes..!!" Sec: "If it gets big, Secilia will make it feel good again, ok?" The siblings spent the next few hours continuing to do sexual acts, such as blowjobs, titfucks, groping. Later, Secilia showed Seima her pussy, and even spread her pussy lips to reveal the inner anatomy such as the clitoris and vaginal entrance. Seima even rubbed his penis on her pussy, and ejaculated between the lips. Sec: "If you put it inside here, that's called sex." Sei: "Um.. have you ever done that before..?" Sec: "No.." Both siblings seemed a bit nervous to start sex, so they just continued with pussy rubbing while Seima groped her breasts. They wouldn't end up having sex this night. They continued this for hours until Seima became exhausted. They fell asleep cuddling, both of them and the bedsheets soaked in semen.

りんご

セイマがセシリアの部屋に忍び込んで、胸を揉んだりしていることにセシリアが気づいた場合、セシリアはそのままスムーズにフェラをはじめるのでしょうか？またマスが忍び込んでいることに気づいた場合もセシリアはフェラしてあげるのでしょうか？

CJ
>>10098383

Excited to see more of the Seima route in the game! I’m sure Seima and Secilia will have plenty of fun pleasuring each other with sexual acts. If I had to guess, they will interpret sexual acts as a way to get closer to each other as siblings. Sec: *knock knock* “Seima, are you done with homework yet?” Sei: “Hm? Yes I am!” Sec: “Dinner won’t be ready for another half hour.. Did you want to have [sex] while we wait?” Sei: “! Yes! Let’s do it!” A few minutes later, they are having missionary position sex. Seima moves his hips back and forth lazily, her pussy gripping tightly on his shaft each time he pulls out. Sei: “We are learning about different types of rocks af school today.. I never knew there was that many..!” Sec: “Tomorrow we can look for different rocks together” Sei gropes her breasts as they sway back and forth. His thrusts become more forceful, and her grip becomes tighter as he cums inside her uterus. Sec: “You let out a lot again.. I think it’s about dinner time now.”

キシ/kishi
>>10100899

今は多くの可能性の中で一つを描いてみたのでゲームの時はどうなるかまだ私も分かりません おそらく、相手と同じような行為をしたことがあり、相手がそれを好きで望むなら、セシリアがしてくれる可能性があります。

John Binger

Let's go! More Seima content is always welcome.