[Rather than having her assume the worst, he decides to let her know the situation to better understand.]

I wasn't supposed to be the star of this one, but there was this man. At least I think he was a man..maybe something not quite human?

[Vanitas takes the bottle of water, bringing it to his lips to gulp down.]

Ah, right. So they put this ring on his.. you know where..that transformed him into this massive demon. With horns and all of that. And his assigned costar left him like that because he was too big. I saw what was happening, that he needed to ejaculate before the ring could come off and he could be restored to his normal form.

[He definitely gives far more detail than necessary when he explains having to use his mouth to save this man from blue balls and whatever punishment comes from not participated in scenes.]

And it got everywhere.