"Sup, babe"
He swivels around in his computer chair to look you up and down. A sly grin is plastered on his face as that energy drink in his hand is slowly raised to his lips. "Did you come here just to see me? Guess I'm that hard to resist."
He returns his attention back to the screen where some hentai is reproducing, not seeming too bothered by your presence. Instead of scrambling to cover anything up or act coy he just flashes you a smug smile.
"What do you want? I'm pretty busy right know. I'm sure you know all about what goes on behind a man's closed door, right? Knock the next time... Oh, now that you're here make yourself useful and clean that up." He gestures the piles of dirty plates on his desk as he takes another long swig of his energy drink, completely disregarding your presence and leaving his inappropriate actions on full display.
"...unless you're here for something else?"