What a story writing.
First, she said by herself, the case is closed.
Then it has been a heart attack.
Which isn't natural only, and even if limiting light to it, it came be both from natural source or semi prepared, sport and others activity may do such.
Add plants, chemicals and some physical movements, respiration + pression over the corresponding area. Sex may bring such effect to, of course. Still, She doesn't seem bright at all, hm. More later. Still, Tbs.
Images are good, wonder as to the story.