no you're doing it wrong. the teacher gets a rough stick from outside, shoves it in his urethra and furiously pushes it in and out giving his inside urethra a bunch of splints.
Then on the next sunny day the boy goes down the a pub.
A girl smashes a bottle and sticks up all the shards up his richard then grabs a tuna jar out of her ass and makes him masturbate with it. It gets stuck and she smashes the tuna jar and the glass gets stuck in his dong.
Someone comes up from behind and shoves a drink up his ass.