A/N: I wrote this forever ago for my friend, but I never published it here. Maybe it'll tickle the fancy of GLaDley fans.
Her moans were loud, louder than he'd ever heard them. Apparently she had perfected being on top, or perhaps it was the fun of being sprawled out over an old desk. Even as she cried out, though, she maintained her grace and control, gasping in pleasure without reducing her dignity in any way.
He could feel her ready to tighten around him, familiar now with how she moved just before climax. She pounded against him, tugging his hair back as her cries reached the peak of their crescendo and…
CRASH!
With one shattering cry she came around him, the desk collapsing as she was lost in the orgasm. She clutched him tightly, oblivious to the debris sticking into his back, pulsing uncontrollably with each wave of pleasure until at last she was finished. He wasn't, but her movements had come to a stop.
There was a single moment with her against his chest that could have been a romantic embrace. It was broken in an instant as GLaDOS regained her composure, swiftly picking herself up and nudging him with her foot.
"Clean it up," she said, pulling her clothes on with a careless glance at the desk.
"But… " He looked sulkily down at himself, a twitch of his still hard length making his current need quite clear. Her eyes dropped down to it before she tugged him close, pressing against his naked body with a hard, deep kiss. It was over as soon as it begun and she immediately had her boots in hand.
"Clean it up, moron." Barefoot, she walked away, leaving him naked and unsatisfied just because she could.