"Cool, these are new, when--"
Bart may have superspeed reflexes but Querl just knows he'll be grabby. He has his fingers tight around Bart's wrist before he can touch the wires.
"Brainy." Bright-eyed blink. He's... pouting.
"Wait for an answer before invading my personal space, Bartholomew." Querl twists Bart's wrist further. Bart's mouth opens with a gasp but he's still grinning.
Infuriating.
Low voice, not young. "No-one else calls me that, you know."
Querl drops Bart's wrist. Reaches up to his ports, slides the cords out for Bart.
Bart hums, blurs; there's a sparky pulse down Querl's spine. "What are they made of?"
"Silica-fibreoptic and peptide--"
"How fast?"
"Fast enough."