You came in to the HQ carrying a bunch of files towring in your arms, well L decided to handcuff himself with Light for a test cause he still suspects him as Kira.

The files blocked your view and without knowing it, your feet stepped onto the chains of the handcuffs and landed on L, your lips pressed onto his... the task force was stunned for a sec then you pulled away in embarressment...even L was shocked but his stoic expression doesnt falter, while your feet was still tied up on the chain

L looked up at you as if nothing had happened then spoke "You should be more careful next time" he said bluntly, before returning back his focus to his work