i had a weird fantasy about my boss

so i work at this boring office and its been one of those weeks where everything feels stuck. usually i dont mind being single but lately even that feels dull. then last night as i was trying to fall asleep i started thinking about my new boss, mr li. hes in his late thirties with dark hair and a suave smile. the thought crossed my mind that itd be kinda hot if he came into my office after hours and told me to stay back so we could talk alone... but then it went further than just talking. i pictured us stripping down, feeling each others bodies through our clothes first, before sliding out of them entirely. mr li would guide my hands onto his firm butt as he bent over my desk, spreading his ass cheeks wide for me to explore and fuck him from behind. i could feel myself getting so wet imagining the way hes cock would slide inside me, stretching my pussy walls as hed thrust hard and deep. it felt so real in that moment but when i woke up this morning i felt weird, like ive betrayed some unspoken rule of being professional. do you think its normal to have fantasies about your boss? am i crossing a line?