Rider

"Crap, I didn't lock it properly."

Sighing, he flung a towel over his shoulder and rose from the water. Tiny cock exposed, he walked to the door. Fate, it seemed, wasn't so count as when he went to adjust the door...

...the whole thing opened.

Rather than being alone, he was faced with the big-titty Rider Servant: Medusa. She blinked. She looked down. Instantly, Shirou got the towel on his shoulder and flung it down to cover his dick.

"R-R-Rider!?"

"S-Shirou...?" Rider blinked, eyes flicking back up. "Apologies, I thought you were just cleaning up..."

"N-no, I'm still using it." His knees went weak and he stepped back, laughing nervously. "Uh, um, sorry, could you wait just for a few more minutes?"

Rider's gaze lingered on his covered crotch. A smile seemed to be appear on her face. A suppressed giggle perhaps? D-dammit, she saw his tiny flaccid dick, didn't she? Dammit, dammit!

"Just be careful," Rider said. "I hear too much cold water can cause shrinkage."

Shirou wanted to die. The erotic Rider really did see his small package...

"D-don't worry," Shirou murmured. "It's warm."

Rider believed him, smiling widely. "Uh-huh."