This was it. What he was letting Bones do, giving up freely to his friend. Giving him a level of trust. But then again, it was all fun. Bones would never hurt him, and this was kinky as hell. A challenge, one that got his blood pumping hard in his veins and sung to him.

Kirk had only a moment to test the level of give Bones had let him have before that so so warm mouth was on him again. A quiet keen left his throat before he remembered Bones' 'order' to remain quiet. He tried to, hips twitching in their desire to thrust. With the blindfold on, he couldn't tell what was coming next.

But it was safe. Kirk could undo the knots holding the leather straps to his wrists in moments. Letting Bones have his way while just having fun.