Immediately Kirk started to suck on Bones' finger like it was his cock instead, his tongue swirling over the sensitive pad. He tensed up a little when Bones moved around on the bed, then relaxed when contact was made with him again. The blindfold made each touch electric, not knowing where it was coming from.

He gasped at the light scrape of teeth on his chest and his fingers pulled apart. They weren't bound to each other or anything - he wanted to give Bones the chance to do what he wanted. His birthday gift, to do what he pleased with.