Being doted on so is delightful, and brings to mind a warmer, sunnier time in Benedict's life, physical affection being a thing he could expect and enjoy. He easily returns the kiss, with a little flutter of his heart when Allumin bites his lip, even more so when he's lain back--

--but then, with that sound, he pulls his head back to laugh.
"Been a while, has it?" he teases, with a little of that bite from before, and his hand slips up to pinch Allumin's chin in a gesture both affectionate and mocking.

He genuinely finds it endearing; he is also, maybe, trying to get more of a rise out of him.