Previous parts: part 1, part 2, part 3, part 4, part 5, part 6, part 7
Sherlock would never admit that he can shriek like a girl. In his defence, he only ever does it when John tickles him; and only when he doesn't expect it.
He didn’t expect it then. It took all John had not to fall off the bed laughing when Sherlock shrieked and jumped, trying to get as far away from John as possible; which resulted in his legs getting tangled in the sheets, making him fall flat on his face, presenting John with quite a lot of his body to reach and tickle some more.
It was a good thing that his legs were trapped, because Sherlock tried to kick John. So John decided to sit on his legs and pull down his pyjama bottoms. Sherlock stilled, breathing heavily, waiting. John smiled and playfully smacked him, making Sherlock grunt. In the back of his head John wondered how many octaves lay between his shriek and that grunt, but then he decided that he couldn’t care less and flattened himself out on Sherlock’s back, pushing his pant-covered erection against Sherlock’s naked arse while biting the sensitive skin on his neck, sucking hard. By then, Sherlock started moving his hips, pushing against John, and against the mattress in turn, groaning softly.
That was when John decided to make him wait; to make him burn.