Adult PC Game: The Engagement Ver.2.5.1 by Captain Kitty Win/Mac Archive

The Engagement is the story about you and people around you. You are on a business trip with Suzie (your best friend's girl). You have this chance to have her for yourself. But you may lose your current girlfriend, Emily. Each decision makes a different outcome. Can you have all the girls or no girl? It's all your decisions.
Some explanations about playing The Engagement:

The Engagement Ver.2.5.1 by Captain Kitty Win/Mac Gameplay Preview