OH LOOK. SEMI-PUBLIC SEX. MEN GOING AT IT. ALERT ALERT YOU HAVE BEEN WARNED. :D
"Has anyone seen Sherlock? Or Dr. Watson?" DI Lestrade's voice boomed across the floor, leading a few of the officers to point in the general direction of his office.
"Oh bloody hell, what're they doing in there?" He got to his door and was about to knock when he remembered it was his damned office, and he didn't need anyone's permission to enter. Once he opened the door though, he found himself wishing he had.
John had Sherlock pinned to the surface of his desk, his trousers down around his knees and the skin of his arse flushed crimson. Sherlock's head was thrown back, and he was moaning loudly. Greg turned away and coughed discreetly, but so distracted were they that they just kept going, until it was quite obvious both of them had reached an immensely satisfying climax. They tidied up and turned around, ending up face-to-face with the DI, who was just standing there awkwardly, mouth hanging open.
"Oh, um, hello Lestrade. Didn't see you there." John blushed, the red tint of his cheeks reminding Greg uncomfortably of the flush on his bottom moments earlier. "Sorry about this, we were just leaving." Sherlock merely smirked, looking insufferably smug and satisfied.
The two of them swept out of Lestrade's office, leaving him slightly aroused, and more than a bit bewildered.