Tea?

"What the hell is this?" Bellatrix asked, pointing her wand suspiciously at Hermione's tea kettle. "And how does it work?" Hermione's chuckles finally subsided, and she gazed seriously at the woman in black with the wild hair who stood in her kitchen, in awe of the hint of curiosity in her lover's voice. Rated "M" for language (don't worry, we'll get to the fun stuf eventually).