This is a scene from the Big Day episode "Boobzilla". The episode features Diora Baird as a post-pregnancy bridesmaid whose breasts have grown to enormous size, and her stacked presence at a dress fitting meet-up makes the other bridesmaids feel underdeveloped.
Diora Baird is in the new Star Trek film, playing an Orion Slave Girl. (One of those green chicks.)