To tell the truth, Kevin wasn't all that comfortable, at least not with his arm pinned to his side. There was a solution - Kevin could move his arm. But would that be too forward? Would Drew object? Hell, did Kevin have the gumption to...
To hell with it.
Kevin looped an arm around Drew's shoulders, affording Kevin the extra few inches of space he needed. It also accomplished the ulterior motives of maintaining contact with the Hufflepuff, whom he was beginning to find rather cute indeed, and it kept him from sprinting off again so soon after tea.