* All persons in this story are at least 18 years of age *
Benjiro excused himself after dinner that night to return to the school to retrieve a missing assignment that he must have left behind. It wasn't in his bag when he got home, and it had happened before that during the undressing process at the beginning of club, or maybe getting dressed afterward, he had lost some items in the shuffle. It was most common on Fridays when he was in a hurry to enjoy his weekend after a long week and wasn't paying attention. All of his focus was normally spent on club activities and he tended to forget about anything else right after.
He had texted Coach as soon as he realized the assignment was missing, as Coach had been accustomed to staying late on Fridays to finish paperwork. Coach said he could stop by and the classroom would be unlocked for a little while longer. Sakura offered to go with him but he refused. He didn't want her to have to waste her evening on his forgetfulness when she could be enjoying herself. They both spent most of their weekday evenings studying and practicing so he didn't want to deprive her of the relaxation that she was due. He threw on a hoodie and his sneakers and was quick to head out the door and toward the train station.
While he was riding one of the last trains of the evening (so he had to be quick or else he'd miss his ride back) Benjiro scrolled through his phone to pass the time. Pretty soon he had a notification from Sukie:
"Hey still horny from club so I'm starting without you," it said, and was followed by a picture of a very sexy closeup of anal sex. Benjiro zoomed in on the girl's asshole stretched around a very thick cock and enjoyed the sight for a moment before texting back:
"Hot! I'll jerk off later if I do, so enjoy yourself."
He was a boy, after all, and he had cum not long ago. He could easily force another orgasm if he needed to but for his own personal enjoyment he would wait to get horny again. If he spent much time thinking about the club, or imagining Sukie playing with herself, he would get there for sure. Right now he was just worried about his homework so he wasn't feeling especially horny yet. If Sukie chose to stay in his room again like last night then he would probably be horny in the middle of the night and jerk off with her in the room. Sometimes he would wake up really horny after a night of edging and have difficulty falling back asleep without satisfying his urge. Tonight that wouldn't be an issue since he had the weekend to "recover" from any orgasms he chose to have.
The school was very quiet but there was a cleaning crew working when he arrived. The school itself was still technically open so he went inside and hurried upstairs to the classroom at the end of the gym where the club met. It was dark except for a faint light coming from the back where the teacher's office was. Benjiro could see through the glass partition that Coach was sitting at the small desk back there. He was about to call out to Coach but there was something about the man that seemed slightly off, so Benjiro crept forward hesitantly.
Coach was facing away from the partition so he didn't see Benjiro coming. He was looking down at something and his body was shaking slightly, almost like a tremor or nervous tick. Benjiro felt bad spying on him but he felt like maybe he was interrupting something. He carefully peered over at whatever Coach was looking at and was surprised to see he was holding a photograph and, quite obviously, masturbating.
Benjiro's eyes went wide and he froze in place. The picture was of a woman, not the slightest bit pornographic or even suggestive. It was just a simple photograph or someone Benjiro didn't recognize, and yet Coach was obviously engrossed in it enough to pleasure himself. Benjiro wanted to leave suddenly as he realized that this was a very private moment that he had stumbled upon. What made it worse was that Coach was doing it at school, and if a student caught a teacher doing something like this it could mean big trouble. Even for the club itself, the Coach's involvement in club activities was strictly limited to educational and academic duties. He was not permitted to participate in the actual masturbation in any way, according to the current association rulebook.
For whatever reason, Coach realized he was being watched and glanced behind him suddenly to see Benjiro standing there. The two of them made eye contact and time seemed to stop quite embarrassingly, with Coach holding the photo and his cock, his pants undone and his glasses slipping down his nose. The moment passed finally and there was a sudden commotion now as Coach realized how bad this could be for him, as he dropped the photograph and hurriedly stood to fasten his pants with random words and sounds stumbling out of him.
"Benji! Oh god, I...oh fuck...I wasn't, well I was but-"
Benjiro held his hands up as he backed away but there was no use pretending he didn't see everything. Coach was fumbling with his pants and was seemingly unable to get his belt to cooperate, though his modest cock was now tucked back into his underwear and was only tenting obscenely now instead of fully exposed.
"Coach, I'm so sorry!" Benjiro felt like he was the one who should apologize. "I thought you were expecting me so I didn't-"
"I was!" Coach replied quickly. "I mean, I thought you'd take longer getting here, and I was waiting for you and...oh god, I'm so embarrassed."
Seeing the middle-aged man change from an authority figure as his coach to a quivering mess of a man made Benjiro very uncomfortable, but his personality demanded that he befriend everyone and not be the cause of anyone's discomfort. He took a deep breath to calm himself and shook his head.
"Coach," he said firmly. "I didn't see anything, ok?"
Coach stopped for a moment and looked sheepishly at Benjiro.
"Seriously," Benjiro reassured him. "This didn't happen."
Coach finished straightening his pants and nodded reluctantly. "I appreciate that, Benji. I really do. I don't have to tell you what would happen to me if you reported this to-"
"Coach, I would never! You can trust me."
Coach smiled at him weakly. "You're probably wondering what I was looking at."
Benjiro shrugged. "None of my business really. We don't even have to talk about this if you don't want-"
"It's Miss Tanaka," Coach explained.
Benjiro glanced at the photograph, which rested on the surface of the small desk now. He had never seen the woman before but now that he was looking at it closer he did notice what appeared to be a streak of something staining the picture, as if this wasn't the first time Coach had masturbated to it. There were certainly more embarrassing things to be caught masturbating to but Benjiro guessed that Miss Tanaka wasn't aware of it happening or else she would have provided a more stimulating version for him.
"The old girl coach?" Benjiro asked.
Coach nodded. "If you can keep a secret, which at this point I'm relying on, you can know that I'm not just creeping on a married woman for now reason. I've been in love with her for quite some time, even before she was married, but of course I'm not exactly a catch these days."
Benjiro frowned. "Coach, come on, that's not true."
Coach straightened his shirt nervously. "It's okay. I've made peace with it, and this is my one outlet for my infatuation."
Benjiro reached past him to pluck the photo off the desk, ignoring the cum stain, and examined it. Miss Tanaka was a very beautiful woman so it was easy to see why anyone would be attracted to her.