A beautiful Nighty set for Genesis 8 and 3. This Dress is d-Force compatible and can be simply used by hitting the Simulate button in the Simulation Settings pane.
The set contains a Panty and a Dress. It is specially made to be able to use the Panty below the Dress.
Depending on the pose used it can be happening that there are poking over the Dress.
If this happens simply change the "Collision Mesh Resolution" parameter to Viewport in the Simulation Settings pane.