A horny young man went to a brothel...

A horny young man went to a brothel...
The lady at the counter asked him what his choice would be. The man wanted to know what was available. Madam, "On the first floor, we have the ex-models...
they are all slinky and sexy...
On the second floor, we have our ex-actresses...
they are all buxom and beautiful...
On the third floor, we have our ex-teachers...
. they...
"Man, "Say no more! Lead me to the third floor." Madam, "Are you sure...
I'm surprised that you would prefer ex-teachers to ex-models and ex-actresses." Man, "It's obvious, ma'am, teachers always make you do a thing over and over again, until you're perfect at it."