Serpent's Bite (Eren x Levi One Shot)

If there is one thing that Levi had kept for a long time, it's that he has a sweet tooth. On Sundays though, most of the stores were closed leaving Levi to suffer alone in the summer heat. Even the air conditioner didn't seem to be helping. Eren returns from nabbing ice from Armin's apartment three doors down when he notices Levi whining. A little idea comes to his mind which may entice Levi's craving.