Awkward situation

Just imagine yourself being a big sexy jock entering the locker room after PE lesson. A skinny guy walks past you to his locker which is further down the way. It's Jim and he stares at your thick muscles as per usual. You start to change you clothes and suddenly you feel your underwear getting tighter. A boner? Well, a bit unexpected but nothing strange. you think. But the feeling keeps rising, fulfilling your panties. Soon you feel your balls pressing against your thighs. You look down and see a huge bulge, bigger then both your large biceps put together. You realise smth is wrong.
Most of your classmates already finished changing clothes and hurry to leave cuz it was the last class in a day. Some of them, jocks just like you, say goodbye to you like to an old friend. You just mumble answers to them imitating that you look for smth in the locker. But the bulge is already supressed against the door of lower locker. Fortunately, nobody used it. You do not want unnecessary attention for now.
Finally everybody left. You can only hear the water in the showers. It's Jim - he always stays in the showers long enough to see all the guys naked. You always knew that he's gay and he has never tried to hide it. 
You get back to reality from sore between your legs. You sit down on the bench and look at your crotch. You hold your mouth shut with your hand not to shout. Not it's bigger than a basketball. You can feel it getting harder as long as you think about its size. Now it's enlarging twice faster - from its original growth and your erection. You're trembling with shock. Jim... He must have smth to do with it. You sure even though you don't know why...
What would you do in such a situation (of the following)?
a) go in the showers and punch the bastard in the face;
b) go in the showers and ask him if he has smth to do with it;
c) wait to see how big your cock will get;
d) run to the doctor immediately;
e) wait to see how big your cock will get and whether Jim will look from behind the locker row;
f) take the panties off, go in the showers and fuck Jim with your still growing cock (motivation varies - from you getting horny from the growth till the truth that you're a secret gay too)
Can't wait to see your answer in the comments below) Your choice will define the content of a sequel to this morph)

PS: yeah, I'm such a bastard - making polls in the description. Cuz I can't make then cuz I don't have premium. But who cares?)