Mosca en paloma
A term for a flat, parasitic louse fly that clings to pigeons, specifically under their wings. Figuratively, it describes a person who is constantly hovering, clinging to, or pestering someone else, usually out of interest or anticipation. (In Venezuelan folklore, these insects are often called the bird's soul because they abandon the body the moment the pigeon dies.)
When I am cooking sweets, that man is like a Mosca en paloma; this describes someone who is constantly hanging around or hovering over someone else, just like the insect stays on its host.
Automatically translated from Spanish