We can do other stuff when you're tied down. It's not a mutually exclusive event! I don't think he gets nekkid in S5 the way he gets nekkid in BtVS. But! There's some good stuff. One shirtless scene in a bed particularly comes to mind. Though I know some Spike fans who don't enjoy S5 because they think Spike isn't treated with enough seriousness, i.e., a bit of a reversion to comic btVS S4 Spike. I wildly disagree; I think S5 just shows his development, the man he's become. But then again I love S4 Spike so maybe I'm not a good judge.