I'm 13 and I can still have a erction after ejaculation and yes I understand with this is ad is it normal to be able to do this at such a young age I have been able to ejaculate 3 times in session and I am being serious.
Is there a question somewhere here? So far nothing abnormal you've stated. Don't worry, that super ability will subside with time as you get older! Enjoy it while it lasts!