"I do not!" Remus protested. He was referring to both stealing Sirius' socks and that thing about drinking hot cocoa. The latter of which had his ears in a bright pink. "You're terrible, you place your socks everywhere, it's no wonder you can't find them," Remus pointed out. It was only because Remus had the patience for it that he could always manage to find his friend's socks.
As for the hot cocoa, well, Remus generally liked anything chocolate a great deal. He enjoyed it. He didn't... do whatever Sirius said. Did he? "You make it sound like porn," Remus said with narrowed eyes at Sirius, still blushing a healthy shade of red. "I just like hot chocolate. Nothing wrong with that," Remus complained. Some childish part of him was still in shock that Sirius actually thought about sex in association to his drinking hot chocolate. Even if Remus did make entirely inappropriate sounds while doing so.