D&D: Don't ask the lieutenant what he wants
From Create Your Own Story
"Don't bother. I don't want to hear it. You are about as crooked as one can be and I am not gonna waste anymore time with you." you suddenly declare. And before he can express his reaction to your denial, you storm out and slam the door. The two guards at the entrance goes to stop you but the lightening in your eyes discourage them from attempting anything. You step out of the garrison. What a waste of time. Your best bet now is the first lead, the sewer entrance in the merchant district. Hopefully, you can reach it before your benevolent informant decide he wants more of you.
You head directly towards merchant district. As you walk, you find yourself passing through a street in the slums. You get into the maze of alleys you find the entrance of the merchant's district. Ahead you see two man blocking the path to the merchant's streets and you see another man getting shoved away. "No money, no passage. This is our street and you need to pay the toll if you want to go through." You recognize the general behavior of thiefs' guild men. As you approach they look at you: "You want to get through? it's gonna be 10 silver." You ponder your options for a second. You could try another path but these thieves tends to be well organized. As you are thinking, you can feel the tingling in your crotch and fear it might affect your decision.
D&D: Use your magic to put them to sleep
D&D: Decide to "bribe" your way in and satisfy your lust in one go
D&D: Turn back and decide to forget about the mysterious monster