Itachi was a man of few words. This however, did not mean that he had a small vocabulary. On the contrary, he had a rather extensive vocabulary gained from years of reading advanced scrolls. As such, it was most strange for the renowned genius to find himself lost for words.
'Hn' was the only response he was capable of giving at the moment. After all, this was an unexpected, unusual and most unwelcomed situation.
"Itachi-san," his grinning shark-like partner remarked, "I do believe that the young man is waiting for an answer?"
"Hn"
"Come now, it's not nice to leave him hanging like this after such an... ardent profession of true love" Oh, Kisame knew very well he would be in a world of pain after this, but it would be well worth it for this chance to rib his normally composed partner.
"Hn"
Said young man was now fidgeting nervously, staring at the ground whilst sneaking bashful peeks through his lashes.
"Tsukuyomi"
Well... that was one way of solving (avoiding) the problem.