His rationality didn't really gain anything when Sherlock stepped closer, his words and tone of voice were a promise of things John's body was craving for and for a moment he couldn't help but imagine himself bending Sherlock on his desk and fucking him blind, punishing him for the pain he had caused him.
He knew though that if he gave in to that now, he would be left with even more longing, he would be even more hurt.
"This is very unfair of you, Sherlock," he whispered, swallowing hard, his eyes were calling him close and it was hard to resist.