So this gif inspired a Johnlock fic…
Begging and Bound – John ties Sherlock to the bed. Dog tags are involved. It’s just smut.
Teaser below the cut
John watched Sherlock’s hand flex as he finished binding his left wrist to the headboard. The right was already secured and the blindfolded detective’s tongue peeked between his lips as he gave an experimental tug.
“Gorgeous,” said John, admiring the view before moving to the foot of the bed and parting Sherlock’s thighs. The shine of slick caught the light. Frowning, he gently probed with his fingers and felt the plug. “You prepped yourself without permission.”
Sherlock’s tongue nervously wet his lips. “I thought you would appreciate the initiative.”
John withdrew from the bed. “I prefer when you listen to me.” He took a few things from their supplies. “Don’t I always take care of you?”
“Yes, John.” Sherlock’s face was turned towards him, tracking the sound of his movements. John gave his ankle a kiss before kneeling between his thighs. Sherlock’s cock twitched with anticipation as John’s thumbs stroked the inside of his thighs.
“Now you’re going to have to wait,” John’s voice was calm.