Previously on Aftermath

With a cry, Ayako slipped and fell on Sakura, who caught the former at a bad angle, causing them to slip and fall on the slippery floor. The ruckus caught Shirou's attention, who quickly rushed over to the living/dining room, and opening the sliding doors loudly.

"What's…" he began, only to break off as his cheeks turned pink. How could they not? Sakura was lying with her legs spread on the floor, her thighs gripping Ayako's hips, who in turn had her hands on Sakura's breasts. Their faces were only inches away from each other, and both were staring at Shirou as though he'd caught them in an intimate moment. "Um…bad timing, huh?"

A few days later...

As Shirou approached the school gates, he sees Ryuudou Issei there as if he was waiting for someone. True enough, he was. When Issei saw Shirou, Shirou could tell that he was the one Issei was waiting for.

"Hey Issei. Need my help with something?" Issei nodded. "Yes. Could you stop by my office for a moment? There is something I would like to ask you."

As the two entered the room, Shirou was the one who broke the ice.

"So... What's this about?"

Issei sat down before asking. "Have you noticed anything different about Matou Sakura lately?"

Confused, Shirou asked "Sakura? Could you elaborated, Issei?"

"I've noticed that Matou Sakura is behaving differently these last few days compared to how she was before that. Do you know anything that might have brought this change?"

Shirou blushed as a scene replayed in his mind. One where Sakura and Ayako looked like they were about to get intimate with each other. "I think Sakura might have gotten herself a girlfriend." Said Shirou with a blush as red as his hair.

Issei's eyes widen with shock. He was not expecting that but quickly composed himself. "Well... As long as they keep it clean and innocent."

The clean part made Shirou realize something.

If they really wanted to "do it", I would have to clean up the mess afterwards.

While Shirou is a gentleman, he still has his urges courtesy of puberty. Not to mention of having to clean up after guests who decided to get frisky in someone else's home.

Thanks to BalancedHydra for this side-story.