The syringe was "very full, very large," and it would make sitting down uncomfortable for a while.
"Kit" had gone to the health center in Chicago for a full panel of STI tests — it had been a minute, after all, and regular screenings are an important part of safe, multi-partner relationships.
During the test, they were told the health center would be double-checking for gonorrhea — "there's a new antibiotic-resistant strain" about, Kit explains.
Kit tested positive for the bacteria.
Fearing the chance it was the superbug version — one resistant to antibiotics — the staff shot Kit up with a double dose of antibiotics (in that very full, very large syringe) and left them with a stern warning to avoid all sexual activity, lest they potentially infect someone else.