One reason is financial efficiency--you can save quite a bit of cash by not having to buy a full fursuit. Another is safety; yiffing with strangers in real life is potentially harmful in many ways (STDs, violent fetishization, awkward pre- and post-act smalltalk), whereas in a virtual realm many of these problems can be avoided.
Chat with our AI personalities
in the main campaign
You play it with the DS. For complete instructions, go to the Challange section on the main menu and learn how to play.
You can in the multiplayer mode, but not in the main story.
you choose him at the main menu
No a laptop does not contain the PS2 software among other reasons