who's going to be on the plate? (гет)

Lily Evans spots extra plates at the dining table, sees her boyfriend bring a dog to meet her parents, and smells roast beef cooking throughout the house, then promptly remembers three things. One, that Vernon Dursley is a louse, a bore, and a prat, but he and James should never be allowed near each other again. Two, that James is way too attached to man's best friend, and three, that James is a vegetarian, so all her mother's excellent cooking skills are wasted on him. She'd thought nothing could go wrong the day she introduced her boyfriend of a couple of months to her parents, but, as always, the universe contradicts her.