Italy told Germany everything.
"Th-that's the truth Germany, I'm a werewolf, I told you everything." Italy said in a nervous tone as he looked at Germany. Germany looked back at him, "What if I could teach you to control your power?" He asked with a straight face.
"Y-you can?! That's great! Though how can you?"
"I own dogs, so a werewolf isn't so different, right?"
"Well, I guess so, ve~" Italy said with a smile and then continued "Now I've got to tell Romano the good news!" as he tried to get up and walk to the door , though he almost fell down. Luckily Germany grabbed his hand before he could fall and helped him stand up. "T-thanks." Italy said with a slight blush as Germany helped him walk.
Now let's timeskip to when Italy is with Romano:
"You told Germany what?!" Romano yelled angrily at his brother. "I-I just told Germany that I was a werewolf." Italy said nervously.
"You idiot! What if he tells others?! That potato _ could use you as a weapon!"
"Germany would never do that! He's my friend!" Romano rolled his eyes after Italy said that and then walked away. "Brother, wait! Germany also said he could help me train to control my power." He said and Romano then stopped walking.
"Do you think he can help me too?" Romano said with a straight face and then looked at Italy.
"Wait, brother, your a werewolf too?!" Romano then nodded.
"I had always been a werewolf, idiota! I just never told anyone."
"Well I'm pretty sure Germany would also help train you! I mean I could always beg him to make him train you too." Italy said with a smile and then that once in a lifetime experience happened, Romano smiled. "Grazie," He said to his brother.
