So, one day he asks André about his secret. André replies: "Well, before sex I simply whip out my willy and smack it against the bedside table, like a hammer.
It numbs it up and makes me last longer".
Later that day, the college teacher gets home to his wife and finds her in the shower - a welcome opportunity for sex.
So, he quickly undresses and starts banging his dick against the dresser, just before hearing his wife calling from the shower:
"Is that you, André?".