"As for authenticity, that goes without saying."
Joseph's smile grew wider on his face, "What?"
"You want to personally test the effects of this reagent?!" Joseph looked troubled.
"Well, it's not that I'm unwilling, but the actual effects greatly exceed your expectations. If you take it here, I'm afraid it might cause some indecorum."
"Because some bodily anomalies cannot be eased by bending over, and also for the sake of your health, I suggest you immediately... ahem..."
"Wait, what did you say?"
"You say you brought a female companion?!"
"Oh... it's a male companion, that's no problem. The reagent enhances your own tool, it's not gender-specific... But the only concern is the safety of your companion."
"If your companion is male, that's very dangerous."
"Your accidental injury might cause your companion to permanently say goodbye to certain physiological activities."