My loyal readers (all 1 of you) have asked for another riddle for this evening, since last night's was too easy. So, brought to you by Curious Village:
A boy and his sister are sitting around the kitchen table chatting. "You know Sis, if I took two years away from my age and gave them to you, you'd be twice my age!" "Well, why don't you just give me one more on top of that? Then I'll be three times your age."
So, just how old is each sibling?