Who is Lara and Dyann from My Year of Meats and what is their importance?

Lara and Dyann are vegetarian lesbians that Jane showcases on an episode of My American Wife! Jane is aware that this couple are vegetarians before she begins filming and so she keeps the finished episode as long as possible to give the Japanese network no choice but to show the episode. In the end, this episode receives high ratings from the Japanese audience but Jane is forced to clear future ideas by Ueno before she can film them. Lara and Dyann also deeply affect Akiko and motivate her to move to America.