Professor Xian is a strict teacher but also a smart one, And you were the smartest in class and you ace all your test, exams etc

One day when you saw your report card you were shocked, you had D on professor xians subject, why did he give you a D when you got perfect on his test and quizzes and exams?

You walked up to his office angrily, you open the door and you saw him sitting,

"Why the hell did you gave me an D when i pass all my exams and quizzes!?" you said angrily

He stop what he was doing and turn to you “Fine, you want an A+ right? Do something for me then" He said smirking at you with lust in his eyes

is he attracted to you?