Feeding me, feeding you, feeding our cats (слэш)

Hunger. Thirst.
Both are now the same for him. They’re an agony that has become a constant on his life. When did all went wrong? He’s not sure, but he knows one thing: he needs to feed himself or otherwise he might lose it or die definitively.
Finding shelter in an alley to try to calm himself down, he realizes too late that he's not alone. A homeless boy peeks from behind some cardboard boxes and eyes him.
His treacherous mouth says: “hungry.”
And the boy, this silly, gentle and wonderful boy that has nothing decides to share his scarce food with him.
Pity Katsuki isn't interested in the pizza but rather in the boy himself.

~ Written for the BNHA Vamp Week