I cannot give you a story as I would like too, it would be plagirism... so I'm going to give you some tips on how to write it.
1. Use your real life... I think that using adjectives that describe your real life could amp the story up... besides that awesome scenario/main idea you've got here.
2. Describe the story the way you'd like someone too do for you, but don't forget too make it "dangerous" not all lovely-duvvy if you know what I mean.
3. Keep it simple but make the story complex. What I mean is don't overthink it, just type.
4. Don't make edits as your going through, just type, type, type... when your done you'll see you've written a whole story. Edit afterwards.
5. This is my top favorite tip to get over writers block, read a book. More specifically a book that's the same topic as what your writing about... romance. Read a romance book for extra inspiration.
6. Lastly, end it with something provacative. Make it a cliffhanger and have readers craving for more.
I hope this helps, I personally love writing and have picked up a few tips along the way :)