Her early modernist work doesn't seem to have progressed far into Cubism, and by the 1920s she mostly painted "sweet nothings" (as the title of this post indicates) in the form of dark-eyed girls in flat, pastel tones. I suppose Laurencin has her place in the Modernist Art-Historical Timeline, but from what I present below, her pedestal is a short one.
This painting has other titles, but its subjects are (left to right): Picasso, Laurencin, Apollinaire and Fernande Olivier (Picasso's mistress at the time).
The main hint of Cubism here is in the lines and shadings; the subjects' forms have not been exploded and rearranged.
Another merest whiff of Cubism.
Laurencin is said to have had affairs with women.
This and the three paintings below fall into what I call her dolce far niente period.
A post-war portrait. Not as flatly painted as those shown above, but an unexceptional, derivative work, typical of the times.
She sometimes depicted men. This is a late painting.