Great concept and excellent execution! The sound effects, music and background environment add a lot to the fun and energetic atmosphere! I love the model, and it's great to see so many customization options to freshen up her look for each session. The overall polish is fantastic, the game feels professionally made.
The stretching game works well and is fun to play with. Some features to consider are movement sensitivity and screen focus settings. I found that I needed to lift up and reposition the mouse several times to complete a big drag and clicked outside of the game onto my other monitor a few times. An icon color change or some other way to indicate if the position is off on a hidden axis may also be a good feature.
Very impressive presentation! Great work!