Derek notices Thomas watching him, smiling in this private way that Derek can't help but to return. He stretches and gathers his clothes, putting on his pants and then wiping the sand off of his feet before putting on his socks and shoes. His shirt gets tucked into the waistband of his pants, because he likes the feeling of the sun on his skin too much.

Thomas' back is to him and Derek studies the pattern of moles there before taking a step forward and sliding his hand across it, brushing the sand away. He swallows hard, letting his hand glide down the length of Thomas' spine before it falls away.