He was staring at my bosom for like 9 seconds. Why?

why would a male coworker stare long and hard with wide eyes directly at my bosom for like 9 seconds while we were chatting and working and facing each othee? im used to him looking at my breasts tbh but this was honestly excessively long and dramatic even for him. I was surpirsed and honestly a bit uncomfortale. i dont wear low cut tops either. Although sometimes my shirts can be a bit see through in the wrong light cause theyre thin or cheap :/ but i wear bras so I don't know

He was staring at my bosom for like 9 seconds. Why?
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