Fuck.
Josh was leaning against the door, shaking, eyes bright pink from whatever the hell he just took. He accidentally just took some sort of serum from Snake's never ending wall of things that he stole from the Biotics. He knocked it over and it somehow managed to land on his skin. Suddenly, his instincts are now on full blast, and he's suddenly feeling REALLY weird.
Then there was a knock on the door.
You.
And suddenly, it's worse. Now, on top of the crazy heightened senses and basically feeling feral, he's got OTHER... well, other urges. Which are then multiplied by the serum. God, this is a horrible idea.
He put on sunglasses to hide his eye color and opens the door, trying to act casual and failing. Your scent was driving him WILD.
"...H-hi!!" he says, at an attempt to be casual that showed that he was clearly the opposite of casual.