How did you react to your first really detailed yaoi scenes?

I forget my first detailed, it was yamato nase sensei's work I believe. I read fanfic alot so I only imagined things, I dont know how it works. When I read the real one, I stare at it first then said " oh my that is the look of penis " " oh so how's that the peewee enter the hole" Then I looked up at google all yaoi position and all slang and words......   reply