[Mamori](https://anilist.co/character/298242)'s little sister.

When I opened the door, standing right outside was a high school girl with huge, pendulous breasts and a voluptuous body. 
 
When I look at this expressionless and cool high school girl's plump boobs and thicc thighs that peek from under her skirt, she says: 
"You really can't help it, can you..." 
 
And she ends up getting me off! Then with a handjob and an intense blowjob, she makes me feel like I wet myself going pew-pew, ejaculating again and again! 
"There's still more to come..." 
 
"Use my body to jerk off, it's fine to ejaculate on me..." 
Using her hot armpits, hair and huge breasts I gushingly ejaculate in large quantities while giving her cumshots! 
 
We also do cosplay sex and have her accept deliveries while wearing that; with her big butt becoming sensitive, I plap-plap her pussy and creampie her to finish this intense sex! 
 
(Source: FANZA, translated) 
 
Notes:
• Released at Comic Market 102 
• A live-action AV adaptation (START-375) was released on July 29th, 2025.

Note: Released at Comic Market 103.

[Profile](https://mausu.net/talent/sugiyama-riho.html) | [Twitter](https://twitter.com/sugiyama_riho) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E6%9D%89%E5%B1%B1%E9%87%8C%E7%A9%82)

She is a voice actress affiliated with Mausu Production.

1. Onii-san... Ohitori desu ka? (お兄さん…おひとりですか?, Are You Alone, Mister?); Comic Market 100 
2. Kyou, Tomete Kuremasen ka? (今日、泊めてくれませんか…？, Can you stay over today?); Comic Market 101 
3. Chotto dake, Kyuukei Shinai...? (ちょっとだけ、休憩しない…？, Wanna Visit the Hot Springs, Mister?) 
4. Gomu wo Tsukete to Iimashita yo ne... (ゴムをつけてといいましたよね..., Hey, Where's the Condom? Didn’t I Tell You to Put on a Rubber...); Comic Market 102 
5. Kyou wa Damette Iimashita yo ne (今日はダメっていいましたよね, I said NO Mister!); Comic Market 103 
6. DeliHeal Yondara Dekachichi Shimai ga Kita (デリヘル呼んだらデカ乳姉妹がきた); kakioroshi

Nanami Tanezawa