- Dioneo crowns Lauretta the next leader of the pack and she immediately makes arrangements to conduct the next day's amusements in the same place.
- Lauretta says she'd like to turn the tables on Dioneo and insist they tell stories about husbands who play pranks on their wives, but she doesn't want to be seen as a vindictive man-hater.
- Instead, she decides that they should talk about pranks in general.
- Dioneo and Fiammetta sing a long duet about Palamon and Arcite (that's the story that becomes Chaucer's Knight's Tale).
- Everyone's happy—the lake, the breeze, the birds, the trees, all perfect.
- In the end, Filomena sings a lament of a lover being scorched by the flames of frustrated love.
- Of course, there's intense speculation after this performance about the possibility of a new love for Filomena.
- Since the words of her song hint that she might have tasted the fruits of love, they're all a bit jealous, too.
- Lauretta recalls that the next day is Friday and reminds them of their resolve to suspend storytelling through Saturday so they can focus on religious observances (and take baths).
- With that, the day comes to a close.