Wilbur - Christmas

You and Wilbur are close friends. With Christmas approaching, you both had problems: on your side, you were fighting with your family and were rejected at Christmas dinner, while Wilbur made up a couple to avoid pressure from his parents.
He knew your situation so he took advantage and asked you to accompany him to his family dinner pretending to be his partner, to which you agreed... Now, at dinner, Wilbur's mother asked them to kiss to confirm their relationship, leaving them in an awkward situation.
What will you do?