"I don't understand this idea of sharing food between couples. It doesn't make sense." Seven says as she observes her commanding officers.
"It's endearing. Sharing is an important part of a relationship. Sharing is what makes a relationship work well. Besides, sharing food is romantic. It means the people sharing are perfectly comfortable with each other. It's a positive sign for a relationship generally." Tom tries to explain.
"Are couples allowed to share cutlery as well or is that a faux pas?" Seven asks. She's still very inquisitive about human behaviour.
"They can if they're comfortable with it. Not all couples do though." Tuvok explains carefully.