"And what are you two doing here?"

and two more limericks
Two more, though still no sex. I'm working on it, though.

I was minding the brats in the morning,
With Potter and Weasley suborning
All my efforts to teach
When I had to beseech
Argus Filch to give them a warning:

I don't care if Poor Potter's in mourning
For Black, or if young love's a-bourning;
If I catch them again
Stealing platypus fin,
Paddle marks will their rears be adorning.

ETA: Proper version now posted.