[ he doesn't 'want to be hurt', per se - he just likes the intensity, likes it when things are overwhelming, when there's so much need for him that it pushes to the very edges of his limits.

when eichi begins to move, he whines- trembles. it feels better than he expected it to, thought that he would just be being used to please eichi, but---

...he presses his tongue up and against eichi's cock as he moves into his mouth, each thrust ripping a low and muffled hum of pleasure from him. he shudders, jolts - ...it's embarrassing, but with this combined with the quickly-pulsing vibrations and eichi's praise, he's already close, and they've barely started. ]