Addison Forbes Montgomery is trapped for 28 days with only Meredith Grey in her house in Seattle. Will they stay enemies? Will they become friends? Will they become 'more than friends'? Loosely Based on Current Events. MerAdd. Meddison. F/F. Addison Montgomery/Meredith Grey. Rated E for Explicit. Spoilers through GA-S16-E21, PP-S6-E13 (aka now). Fluff, Humor, Romance.