A helping hand?
"Severus? I need you to help me with something," Remus said with a sly smile.
"With what might that be?" Severus asked and lifted his eyes from his book to look at the werewolf in front of him, who, he quickly realised, was completely naked. A low moan rumbled in his chest and his blood shot straight downwards.
"I need to take a shower but I can't reach my back properly, and I need to be clean do I not? Could you help me?"
Severus was out of his chair and dragging Remus away before the sentence had been finished.