The little blush on Ben's cheeks was bloody cute and the smile on Bill's face just widened. "Great," Bill agreed, because it was silly and didn't make much sense, best he get on board.
Bill's cooking magic was rubbish compared to his mother's, she could put together a feast and her gravy was famous throughout the wizarding world. Bill's was far less glamorous, but he could handle a few basics. "Go right ahead," he said as he moved out of the doorway. But the way he went meant that they had to circle around each other, Bill's back against the wall and he winked down at him as their eyes met. He backed away then, keeping eye contact for a few extra moments until Ben went into the bathroom.
The kitchen was looking a little worse for wear and he gave the kettle a poke with his wand which had it whistling. He had to transfigure a cup into a proper teapot, but that was easy enough.