New instructions

Finally, while you still investigate your new cage feeling something between dread and unwanted arousal, the other person responds.

"Not enough. Take a picture of your whole body."

You are very aware that this picture could, and probably will, only be used to further **** you, but what choice do you have?
You set up your phone on your desk, and set a timer on your camera to 10 seconds. Arkwardly, you position yourself in the middle of the room, until you hear the click. You look at the picture. You, completely nude, with the cage around your cock, well recognizable.
Taking another deep breath, you send it to the number. The response comes faster.

"Good."

You wait for a couple of moments, then another text appears.

"We´ll be in contact again. Until then, do not message me. If somebody finds out about your cage, find an explanation. Do not tell the truth. You know what could happen."

As no further message appears, you just type "Understood", and close your phone. Still naked, you lay back on your bed. The text of the stranger put a idea in your head you didnt consider before. You live with 3 other people. Your friend John, and two female friends of yours, Emily and Kate.

What if one actually found out about...all of this?
What could you tell them as an explanation?
You guess you are just gonna have to hope for the best until you get send instructions.

You decide its best to get dressed again when you hear steps approaching in the hallway in front of your door.