what was i thinking

so there i am at 52 and still teaching but this new student, she's in her mid twenties, catches my eye. one night we decide to explore a roleplay where i'm the professor grading her on something way more intimate than essays. she's into it too, spreads herself wide open for me to evaluate all parts of her body as if it were an academic exercise. felt odd yet electrifying, like i was grading an essay but getting turned on by every syllable instead of just marking up grammar and style. the sex itself, well let’s just say every part of her that could be measured or rated got attention from me in one way or another, leaving no room for vagueness. so now im wondering what this says about me... am i just curious or is there something deeper going on here? anyone else ever do anything similar? wanna know if i'm the only nutjob out there.