The thing about Karkat Vantas is, he might be a pompous, noisy windbag with an inflated opinion of his own importance, and if he was suddenly struck down by some kind of vicious troll laryngitis the universe's total amount of chill and quiet would suddenly go up three levels... But turns out he's also a great fuck.

His arm wasn't the only thing the Galra changed. They also gave him certain... needs. Shiro learns to make it work for him.

This might as well happen, right? Get possessed by an alien parasite, save the world, get fucked by an alien parasite… it’s all in the same vein. It’s not like this is any more fucked up than the rest of it.

While the Asset is in the middle of an experimentation session with the Chem Sci department, an emergency happens in another lab. One of the other experimental creatures escaped its containment cell and the Asset is ordered to go take care of it. He's hosed off, plugged up, geared up, and sent upstairs post-haste to deal with the problem. Unfortunately, the Asset is still flush with drugs that make him incredibly aroused. When the escaped creature notices, he takes an interest. Much to the Asset's delight.