Amai Jouji summary:

Mii is an innocent girl, and she thinks that the act of sex should be romantic, tender, and beautiful. One day, however, her boyfriend Renji adopted a provocative attitude, and kissed her. The moment Mii experienced that kiss, it gave her a pleasant shock. The works by Yuna Sasaki, a new star of Comic Monthly Cheese, that describe girls' real feelings are collected.