" Dopey, on my right - as usual, I'd ended up sitting on the hump in the middle of the backseat - muttered, "I don't know what you see in that headcase Meducci anyway."
Doc said, "Oh, that's easy. Females of any species tend to select the male partner who is best able to provide for her and any offspring which might result from their coupling. Michael Meducci, being a good deal more intelligent than most of his classmates, amply fulfills that role, in addition to which he has what is considered, by Western standards of beauty, an outstanding physique - if what I've overheard Gina and Suze saying counts for anything. Since he is likely to pass on these favorable genetic components to his children, he is irresistible to breeding females everywhere - at least, discerning ones like Suze."
There was silence in the car ... the kind of silence that usually followed one of Doc's speeches.
Then Gina said reverently, "They really should move you up a grade, David."
"Oh, they've offered," Doc replied, cheerfully, "but while my intellect might be evolved for a boy my age, my growth is somewhat retarded. I felt it was inadvisable to thrust myself into a population of males much larger than I, who might be threatened by my superior intelligence."
"In other words," Sleepy translated for Gina's benefit, "we didn't want him getting his butt kicked by the bigger kids. "

― , Reunion (The Mediator, #3)