Read them

Should he read them? I mean, no other spell ever had to be read to be understood right? But then again, this spell would forever change his cock, wouldn't it be best if he read them? Sighing, he began to read each spell, one by one. Luckily, the grandis and vegrandis spells were simple and didn't have any instructions or warnings, the other two however.

"Tempus stamine, this spell will make your cock go through all it's life stages, whenever you wish for it to stop, you must simply cast the finite incatatium spell, but be very careful, as this spell, once done, cannot be altered in any way shape or form"

"Porrigo, this spell will mold your cock as if it was made out of rubber, it will first shrink down to 0.1 inches, before growing and growing and growing, it will be stopped once the user castes the finite incatatium charm, but be very careful, as this spell is irreversible, the size you end the spell in, will be the size of your cock for the rest of your life."

Well... Thank Merlin he read them then