There it is. That's what he's after, and Locus's pleasure is evident before he sets to this new pattern. Watching Delta flicker with the intensity of it all is deeply satisfying, and more than anything else that sticks out in his mind as he moves. Making this good for him, letting him feel as much as is possible for someone like him.

"Breathe, Delta."

And that hand drops from his hip, trusting Delta to keep his hips angled exactly as he needs, before his fingers slip around his cock to curl warmly, thumb rolling over the slickening tip.