Dear Snowdrop, my most faithful subject,

On the occasion of your twelfth birthday, I would like to offer you a very special gift. This "device" here is something that full-grown mares use when they feel very lonely and need to relieve the tension they might feel. You will soon learn that fillies of your age start feeling this kind of tension and that is where this device, which is called a dildo, comes in handy.

In case you need instructions on how to use this device, here is a summary: You need to insert it into the hole between your legs (the one you pee with), with the flat part staying outside, and the bulge at the other end going inside. After that, you just need to keep moving it back and forth, at a pace you are comfortable with. I am sure you will get the hang of this fairly quickly.

What you need to understand, dear Snowdrop, is that this device should remain your personal secret. Do not show it to your mother or anypony else, do not mention it to them, and ensure that they will not find it. In particular, you need to avoid using this device when you are not absolutely certain that nopony will interrupt you. This kind of device and its usage are very private and very intimate subjects, and are considered a taboo among ponies - something usually prohibited to talk about, with only some ponies willing to do so. So before asking a question or starting a discussion on the subject, you must make sure that the ponies you are going to talk to about it are comfortable with this kind of topic.

If in any case you will need some help or advice, remember that you can always contact me, or Princess Luna. We are always willing to help you with all sorts of problems, even the intimate ones, should there be any. And speaking of Princess Luna, she wanted to wish you the best of luck, and remind you that you are a very special filly whom she loves dearly.

I hope you enjoy your present. Happy twelfth birthday, Snowdrop!

Signed,

Princess Celestia and Princess Luna.