The Prefects Bathroom

The prefects bathroom should be empty right now, plus on the off chance anyone is there nobody would question the head girl being in there. He quickly grabs his invisibility cloak and the magic camera he bought just for this before making his way down. Luckily he overheard the password from a few prefects one day and so had no issue opening the door and striding in.

He decided to fill the huge bath in the centre before he took the potion, the idea of getting some photos of Ginny's body, all soapy and wet was already getting his little dick stiff. As soon as the bath was full he wasted no time, stripping off his robes and downing the foul tasting concoction in one gulp.