Yes, it was far too hot and his limbs were possibly on fire but he needed the heat so he just mumbled something incoherent and did his best to help Arthur by moving various parts of his body when directed, and not falling asleep or passing out no matter how much he wanted to.
He flinched as Arthur ran the wash cloth over his back, though, biting at his bottom lip so that he wouldn't pull away. Maybe he should try and talk, distract himself from what was going on. "...How long were we gone?" he asked, flexing his fingers as best he could.