SDJS-193 It’s my first time working on a project like this. I’m trying to develop better dildos for men. Please let me test them using my own vagina. I’m a little shy, but I’m not shy at all when it comes to having sex with dildos. I’ve been working in the product development department for two years now. My name is Shizaki Haruka.
初めて尽くし3本番奮闘ドキュメント 『より良いオナホグッズ開発研究の為に私のおマ○コでテストさせてください』照れ屋だけどスケベっぷり半端ないグッズ事業部 入社2年目 柴崎はる
3h 8m2023/06/22
Actresses
Maker: SOD Create
Director: Easy Matsumoto
Sample Images



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View all →SDJS-193 Description
Taking the opportunity of appearing in AV films, Shibasaki Haru is determined to put her own efforts into developing new products. This time, she is working on finalizing the design of a new type of dildo for use in sexual activities.
It’s all new for her: first-time experiences with all three types of sex!
1. “First-time Lotion Sex” – Researching lube for use with dildos, so that the entire body becomes slippery when using it.
2. “Cum Stretching & Fellatio at Close Range” – Studying how sensitive and shaped the penis is when it’s in close proximity to the dildo.
3. “First-time Sex with an Unsuspecting Man” – Comparing different prototypes of dildos and penises.
4. “First-time 3-Person Sex” – Observing how many thrusts are needed to achieve ejaculation during filming.







![[Internal and External Orgasm] Rided by Acmecharri, piston vibrator, and dildo… “I’m already orgasmic now…” Right after reaching internal orgasm, she was continued to be stimulated with the dildo. Both breasts were extremely sensitive, and the piston kept moving back and forth. Shibasaki Haru](https://pics.dmm.co.jp/digital/video/1start00526/1start00526ps.jpg)





![[Special Edition] My first time having unprotected sex. It was so intense that I couldn’t stop having orgasms! A truly amazing sexual experience! Kaizaki Sanae](https://pics.dmm.co.jp/digital/video/1start00593v/1start00593vps.jpg)





![“Will we get some naughty things done here…?” With just those words, the little devil voice of Matsunaga Akari makes my penis get excited again. I’m tempted to whisper those sweet words in her ear, and then secretly have sex in four different situations. [Binaural recording & completely subjective experience]](https://pics.dmm.co.jp/digital/video/1start00613/1start00613ps.jpg)


