Some vibrators are more powerful than others.
When using vibrators, physics for the vibration of the girl's bodies.The pussy will slowly open up its lips with your pressure (outer and inner labia with their own behavior) while you'll see how the ass closes with its distinctive delay.Multiple insertion: It doesn't matter how big the diameter, all the holes can be penetrated at the same time.Orifices that actually adjust to the penetration: Sometimes as wide as a beer bottle, or they split open just enough for a drinking straw.
There's a lot of powerful technology running in Girlvania to ensure enjoyable and dynamic lady parts: An anatomically correct simulation is essential to make a pussy and ass look and feel real. Great graphics, while important, is not the only thing that matters. Girlvania is at its core a sexual simulator.
