「ポルチオ開発」にやって来たのは、おっとりとした喋り方の、お嬢様系で可憐なイメージの天音かんなさん。用意されたディルドをチラ見しつつポルチオ体験について尋ねると、「まだ未体験」と語る。しかし知識としては理解しているようで、「子宮の奥の方が感じる」という彼女に、まずはディルドでのセルフプレジャーを実践してもらった。指で自身のマ○コとクリトリスを弄りつつ、膣内へ極太のディルドをゆっくりとヌキサシ。徐々にヒートアップすると「あ……イク！」と早くも絶頂を迎える。続いて床に立てた疑似チ○ポへ跨り、自ら腰を下ろして挿入。膣奥までグリグリと押し込み、子宮を突くポルチオ刺激に喘ぎながら、激しく腰を浮き沈みさせて再び絶頂へ！奥まで突き上げる猛烈なピストンに、抗う術なくイッてしまうかんなさん。喘ぎ声は悶絶の呻きへと変わり、全身をピンク色に紅潮させて激しくヨガる。ベッドへ移動しての本番では、恥骨の上を押さえられながらの指マンによる「ポルチオ講義」を受け、ねっとりとした愛撫に一段と大きな声を上げた。電マとバイブによる膣内攻め、さらに恥骨への振動を受け、白目を剥きながらの激しい悶絶。敏感なマ○コをクンニで責められ、懸命にチ○ポをしゃぶりながら下半身への刺激を堪能し、準備が整ったところでいよいよ合体！潤んだ瞳と黒髪のストレートロングを振り乱し、頬を赤らめてヨダレを垂らさんばかりに喘ぐ姿が、理性を激しく揺さぶる。極太チ○ポのヌキサシが子宮に響き、その振動にイキヨガる彼女の姿に男優も限界間近。急いでモノを抜き去り、お腹の上へと勢いよく射精した。上半身と下半身、2人からの執拗な愛撫に快感の淵へと追い込まれ、ローター・電マ・指マンの波状攻撃に潮を吹きながら悶絶する。2本のチ○ポを貪るようなダブルフェラで喉奥まで吸い込み、嗚咽を漏らしながらマ○コにも極太チ○ポを叩き込まれる。電マの刺激も加わり、喘ぎ声の止まらない白熱のSEXへ……。ローターを膣奥に潜ませたまま、極太ピストンが子宮の奥深くを執拗に責め、かんなさんは激しく身を乱していく。お尻にザーメンを浴びせられ、間髪入れずに次のチ○ポをハメられると、絶叫しながらイキヨガる顔面へ2連発の追撃射精！身を投げ出すように脱力するかんなさんの表情からは、ポルチオ開発が完了したことが見て取れた。
The one who came for "Porchio Development" was Kanna Amane, a gentle-spoken, refined lady with a lovely image. Glancing at the dildo that had been prepared, she was asked about her experience with porchio, and she said, "I haven't tried it yet." However, she seemed to understand it intellectually, and when she said, "I feel it deep inside my uterus," we had her practice self-pleasure with the dildo first. While playing with her own pussy and clitoris with her fingers, she slowly inserted and withdrew the extra-thick dildo into her vagina. As she gradually heated up, she quickly reached orgasm, saying, "Ah… I'm coming!" Next, she straddled the artificial penis that was standing upright on the floor and lowered herself to insert it. Pushing it deep into her vagina, she moaned as the porchio stimulation hit her uterus, and she violently moved her hips up and down, reaching orgasm again! With no way to resist the furious thrusting that went deep inside, Kanna came. Her moans turned into groans of agony, and her whole body flushed pink as she writhed violently. During the main event on the bed, she received a "porchio lesson" with finger stimulation while her pubic bone was held down, and she cried out even louder at the sticky caresses. Her vagina was attacked with a vibrator and electric massager, and she also received vibrations on her pubic bone, causing her to writhe in intense agony with her eyes rolling back. Her sensitive pussy was teased with cunnilingus, and she enjoyed the stimulation to her lower body while diligently sucking on the dick, and when she was ready, it was finally time for intercourse! Her moist eyes and long straight black hair were disheveled, and her cheeks were red as she moaned, almost drooling, which violently shook the actor's reason. The thrusting of the thick dick resonated in her uterus, and the sight of her writhing in pleasure from the vibrations brought the actor to his limit as well. He quickly pulled out and ejaculated forcefully onto her stomach. Driven to the brink of ecstasy by the relentless caresses of both men, one above and one below, she writhes in agony as she squirts from the wave of attacks from the vibrator, electric massager, and finger-fucking. She devours both cocks with a double fellatio, sucking them deep into her throat, and as she sobs, a thick cock is slammed into her pussy. With the added stimulation of the electric massager, the sex becomes a heated affair with her moans never ceasing… With the vibrator still hidden deep inside her vagina, the thick piston relentlessly attacks the depths of her uterus, causing Kanna to writhe violently. Her ass is covered in semen, and without a moment's pause, the next cock is thrust into her, and two more ejaculations hit her face as she screams and orgasms! From the look on Kanna's face as she collapses, it was clear that her cervix had been fully developed.

– JavGG.net