いつも通り委員会の雑務を片付けて教室に戻ったあの日の放課後【pixiv #11606452 »】
教室のドアの前に立ち尽くし、委員長とアイツの行為から目を背ける事が出来ずにいたあの日。
頭が真っ白になって何も考えられなくなって、気がついたら僕はパンツの中に射精していた。
目の前で続けられていた行為が終わって２人が教室を出ようと近付いてきても、僕は呆然としたまま動けず
そこをアイツに見つかり制服のズボンの染みに気付かれてしまい、その時の姿を携帯で撮影されて脅された。

それから僕は毎日のように放課後のこの時間に呼び出されるようになった。
委員長とアイツのセックスの観客として。
ズボンを下ろされ、身動き出来ないよう手足を拘束され、『特等席』で全てを見せられる。
委員長の吐息が触れる距離に居ながら、僕は何も出来ない。委員長には指一本触れられない。
行為に混ざる事もそれを見ながら自分で扱く事も許されず、股間を痛いくらい勃起させながら見ているだけ。
見るのが辛くてきつく目をつぶっても、声が…息遣いが…濡れた音や肉と肉がぶつかり合う音が聞こえてくる…。

…放課後の委員長はもう僕が好きな委員長じゃない。
獣みたいな喘ぎ声を上げて舌を突き出し髪を振り乱しながら淫らな表情と言葉でアイツを求める委員長は
僕の隣に居た物静かで優しい目をしていた少女とは全く別人だ。僕が好きだった彼女とは…もう…。

だけど…。
僕じゃない男の顔を見つめる目は、僕の顔を覗き込んだ目と同じで…。
僕じゃない男の名前を呼ぶ声は、僕の名前を呼んでくれた声と同じで…。

もう僕には解らない…。
委員長へ抱いている恋心も…自分の今の感情も…もう全部。
…ただ解るのは胸の痛さより性的興奮が勝っているって事と…
僕のモノは限界まで勃起していて…もうどうなってもいいから早く射精してしまいたいって事だけだった……。

　　前に描いた絵の続き描いてみました。2枚目と3枚目は文字なしと文字&効果なし差分です。 【追記】アンケートの回答で尻が1番だなんて…。

That day after school, when I returned to the classroom after finishing up my chores for the committee as usual [pixiv #11606452 »]
That day, I was standing in front of the classroom door, unable to look away from what the class president and that guy were doing.
My mind went blank, and I couldn't think of anything else, and the next thing I knew, I had ejaculated into my pants.
Even when they finished what they were doing in front of me and the two of them approached me to leave the classroom, I was stunned and unable to move.
That guy found me there, noticed the stain on my uniform pants, took a picture of me with his phone and threatened me.

After that, I started to be called in at this time after school almost every day.
As a spectator for the class president and that guy's sex.
My pants were pulled down, my hands and feet were tied so I couldn't move, and I was shown everything from a "front row seat.''
Even though I was close enough to feel the class president's breath, I couldn't do anything. I couldn't even lay a finger on the class president.
I wasn't allowed to take part in the act, nor was I allowed to jerk off while watching, so I could only watch with a hard erection so strong it hurt.

Even when I closed my eyes tightly because it was painful to watch, I could hear voices...breathing...the sounds of wetness and the sounds of flesh hitting flesh...

...The class president after school is no longer the class president I like.
The class president who moans like an animal, sticks out her tongue, tosses her hair around, and seeks him with lewd expressions and words
is a completely different person from the quiet, gentle-eyed girl who sat next to me. The girl I loved...is no longer...

But...
The eyes that stare into the face of a man who is not me are the same as the eyes that peered into my face...
The voice that calls the name of a man who is not me is the same as the voice that called me by name...

I don't understand anymore...
The love I feel for the class president...and my current feelings...everything.
...All I know is that the sexual excitement is stronger than the pain in my chest...
My thing is erect to the limit...I don't care what happens, I just want to ejaculate quickly...

I tried drawing a continuation of a previous drawing. The second and third pictures are variations with no text and no text and effects. [Postscript] The butt was number one in the survey responses...