New quest. Save before starting the quest. Some part of it can be completed in a different ways, so you may want to reload the save to check out the options.
To start the quest help Fina at the morning after completing the Tea with Milk quest.
Spoiler info about the quest is
You must be registered to see the links
Carla’s cumflation. Make Big Load potion, fuck Carla in the pussy or ass and enjoy her with big pregnant looking belly. Proper illustration will be shown in her pussyfuking and nipplefucking scene. The effect stays on for 3 days. Potion recipe can be obtained during the quest with Juliette.