After finish his orgasm Frank take a big breath he goes to his closet again, but he can't wear any of his clothes became they are too tighy on him.
So he's going to his big brother closet for find some clothes who can wear; his brother is 16 years old a decent body and 6' 2 height who Frank is very jealous too, but even he became a 13 years old, a little muscle on his frame and 5 foot height, his brother clothes are too big for him.
"Oh my these are big for me, I need to find some clothes, maybe mom take some of his clothes for gave to me when i will grow... but i grow now so what can i do?" He start to think of what to do before his family arrive but the only think he came in mind is what they do to him after they discover that? He is totally scared about it.
"I need to became more bigger so they can't say anything to me, but how i grow? Maybe i ate something this morning that make me grow". He goes directly to the kitchen for eat the same thing of this morning but nothing happen.
"Shit i ate the same thing of this morning but i don't fell any different, maybe the effect take some time for work."
In that moment he see the pool and he came to his mind that maybe was the pool's fault.
He stand up and he goes again to the pool, but before he see if anybody his around there who can see him.
"Great, now it's to became the new man of house" He goes directly inside the pool for see if he change, after a swim from side to side of the pool he goes inside where there is a big mirror who can see all the trasformation and it became...
His height goes from 5' to 5'5' his hair on his body became more thick and longer on his legs,arms and airpits,his calves became big like two coconuts the muscle of his legs became more bigger than his brother and became more long that increases his height to 5'10 then in his torso a well built six pack appear and two defined pecs that any swimmer builder want, his biceps explodes on his arms his shoulder became so wider that his 13 years old head seems to disapper until his head became appropriate for his big body; when the transformation is concluded the 13 years old Frank there is no more now he is a 21 years old man with a body of a pro swimmer builder, his foot are a big 13 size and his height is 6 foot 5 inches with a dick of 8 inches soft.
With a much deeper voive he say "Ahh this is amazing, now i'm bigger than my bro.. no i'm the new man of this house no one can't say anything to me, they must accept the new situations and that means they need to follow my rules, but there is time for that now i will going to enjoy my new size."
Frank make all the pose he knew in front of the mirror; he is so proud about that he take so much time to caress his body.
He hasn't so much hair on his torso expect a little treasure trail; he has more hair on his cock and on his legs; his face have a little beard and on his arms there isn't so much hair. In that moment he hear someone at the door who can be?