One Night Stand Accident

Naruto has been searching for Sasuke for years. Now, four years after the war and the last time Sasuke was heard from, they meet again. Due to the involvement of alcohol they end up in bed together but even as Sasuke states it was an accident and disappears, Naruto doesn't give up on him and refuses to go back to Konoha. That is till he starts to throw up every morning. SXN, Mpreg