Niki nodded his head. "I can give him an arm," he said after deciding that Goyle probably didn't mean that in a literal sense. Because he didn't want to take his arm off, that would be painful.
He stepped closer to Theodore so he could slide an arm around his waist. Niki wasn't particularly large, but Theodore was smaller still, so it was hardly difficult at all.
"We'll be right here," he said, not minding Theodore's ramblings.