You might be getting yourself in a bad situation?
You were coming home this evening and noticed a blonde haired woman going into the apartment next door to you (she smiled and said "hello," as you waited for her to go inside).
You assumed she must be related to your neighbor, Mary. So, you go into your apartment and just "chill" for the evening.
Around midnight you start hearing something bumping against your front door. It stops for a few seconds then starts up again (you're a bit apprehensive about opening the door, but you do anyway).
You look down and it's the blonde you saw earlier and she's cleaning the area in front of the apartments.
She introduces herself as Selene, Mary's sister and apologies for hitting your door. She was just trying to clean up some juice that spilled when she was taking out the garbage.
You stood there and watched Selene clean for about a minute and asked her did she have enough paper towels (the truth is you're trying to figure out a way you can "hit it").
She said she was okay, so you closed the door and told her to have a pleasant evening.
However, about 5 minutes later Selene rings your bell, and wants to know if you have Ajax or some other household cleaner because what she is using is not working.
You open the door and invite Selene in and in your mind she's ready to do "nasty things" with you.
Ok, this is all in your mind at the moment, but she was scantily clad (so, something could happen).