I really must stop letting Secretmoustache2 'dare' me to write stories... SM2, this is for you :)
Disclaimer - own nothing ...sad...
Molly stepped back from the body of the teenage girl lying on the mortuary table, still clothed, the ugly mark of death marring her temple.
"Cause of death is obvious." She said as Sherlock stepped forward.
John and Lestrade stood to one side as the consulting detective deduced.
"Well it's fairly obvious, her boyfriend did it."
"Obvious?" John knew if he didn't say it, Sherlock would never elaborate.
"Of course," the younger man obliged. "Her clothes are in disarray, her shirt buttons ripped off, the buckle of her belt undone. He wanted intercourse, she said no, he lost his temper and she…." He turned and pointed at the corpse with a flourish. "…she lost her life."
"What about this though?" Molly pointed to a circular mark just under her chin. It was perfectly round and red, not quite a bruise but definitely not a birthmark.
Sherlock examined it through his magnifying glass, then shook his head and stepped back, resting his chin on the tips of his steepled fingers.
John looked at Sherlock, then back at the girl, and chuckled.
"Coke bottle" he said pointing across at one of Molly's lab assistants, who was sitting resting her chin on her coke bottle, reading.
Molly grinned.
Sherlock stared into John's smiling face, then spun around and stalked out with a petulant "Bah!"