At least he knows how to kiss, and he's perfectly capable of reciprocating, even if he's only ever kissed one guy before, and it had turned out terribly, but Ned doesn't need to know that. It's probably obvious that there's still a whole lot of jitteriness and nervousness all pent up inside him, so the fact that the first kiss is short is probably good; it gives him time to catch his breath, to center himself, to listen to Ned saying he's been wanting to do that for awhile now and be appropriately flustered by it.

"I've been wanting you to do it for awhile. But I kind of thought it'd be weird if I just said that. I mean, I guess I'm saying it now, so I..."

Maybe it's for the best that Ned leans down to kiss him again. It effectively cuts off whatever he's saying, makes him focus on the kiss instead, although he's still not quite sure what he's supposed to do with his hands. Still, for all his inability to know where to put his hands, his kiss is as eager and effusive as his personality -- a bit flustered, perhaps, but undeniably enthusiastic all the same.