A question caught me by surprise-1

To be honest, this probably wasn’t the first time I’d reacted to my
sister’s body, but I was never as cognizant of it as I was now. Both of us
were woefully inexperienced when it came to sex, a consequence of a certain
degree of social ineptitude, as well as our lifelong emotional intimacy.
I’d always found her attractive, but I never found myself dwelling on her
body so intently before. It occurred to me that I had seen more of her
than anyone else on the planet.

And just like that, I was once again punished by the gods of
inconvenient and painful erections, the kind that used to strike without
warning during puberty. Thus, I has the privilege of spending the rest of
the lecture trying desperately to think about anything other than what my
sister looked like naked.

What I needed was a distraction. Someone other than my twin sister to
dwell on. Someone that was actually an option. That last part was the
most difficult. I still hadn’t quite mastered the art of talking to a
woman that wasn’t related to me. Too many video games, not enough football
I assumed.