Yes, permanently

Lina opened her Facebook app and sent it to the group chat, just as she said she would. At the same second, Tom's phone gave out a sound of receiving a message. He was on the internet now... It were their friends only, but still... He barely told Lina about his fetish, but now more than 5 of them knows of it...

Lina (grinning): Tom, how does it feel to be on Facebook naked?

Tom (ashamed): Not quite good to tell the truth...

Lina: Tell you what... Nobody has seen this photo yet as I have just sent it, I can delete it if you want...

Tom: Really?... Would you?

Lina: Yeah, we are best friends, I don't want to expose you to something dangerous as it is to be on the internet naked, without your consent.

Tom: Thank you!

Lina: So... Give me your consent!

Tom: What?! But you have just said you would delete it...!

Lina: Yes, if you didn't want it to be on the internet... So, say you want it to be there!

Tom: But I don't!

Lina (with her arms on her wrist): Tom... Normally, I wouldn't even ask this question, as best friends I would just simply delete it or wouldn't even send it to others, to begin with... But today I am not here as your best friend... I am your mistress, remember? Today, I don't care what you want or what you don't want... I am pulling the cards! Understood?!

Tom (disheartened): Yes, mistress...

Lina: You told me you liked being exposed... Didn't you Tom?

Tom: Yes, I did...

Lina: I take it as a consent, that you agree with me, exposing you like this. Thank you. The photo stays in the group as it is! You will have time to explain it at the evening when you get home. I am curious of what they will say when they see it... But let's focus on the present now. It will be a reminder of what happens should you not follow my orders... You could have just put that collar on and avoid this, but nooo, you just had to be disobedient... Pay up for that! And no more defiance or you will suffer worse punishments in the future... Understood?!

Tom: Yes, mistress...

Lina (as handing the collar to Tom): Prove it. Prove me you have learned your lesson, which happened to be the hard way... Put it on. NOW!

Tom: Yes, mistress...

As she passed the collar to Tom, the photo was already seen, by one of their friends, Zoe. She couldn't believe her eyes when she saw that, saved the photo to her phone and started typing... Now, Zoe had the photo of Tom being naked with Lina... She wanted to ask about the origin or reason of it. She was thinking Lina and Tom were in a secret relationship and Lina exposed this by mistake now... She didn't want to cause trouble for them, as they were all friends, but felt, this photo deserved and explanation.

Zoe (to herself after saving the photo): One day, it might come handy...

As time passed, the others saw it too, having the same reaction... What. The. Hell. Is. This.