This was really I good and the miles davis reference was perfect....
"It’s like I’m playing with the wires of a bomb."
That's a great and actually humorous image.
Punctuating the dialogue with these lines helped to capture the nervousness and weight in the situation, and I want to say naivete as well.
"The waterbed makes every movement more awkward"
"Now I feel a shame like in the translator recounting a killer’s confession in first person."
I think there might be a little grammar error in this one: "like in a translator" perhaps?
"The mood intensifies..."
Now, without knowing the prompt I can't really say whether or not you hit the nail on the head. Otherwise, on it's own you've done a great job of capturing a cute moment.
Something else you might want to think about is that there might be a little bit of a disconnect of where the story starts out: a cock block running Victoria's secret and the ending: the guy trying to figure it out for himself. But with only a 150 words it's not that big of a deal, just something to consider.
