Gai, the demure librarian, finds solace in her private fantasy world. Today, she's imagining herself in the throes of passion with Len, the dockworker, his massive cock pounding into her tight, wet pussy. She's so lost in her fantasy that she doesn't notice Em, the office manager, watching her through the window. Em, intrigued by Gai's undisguised pleasure, decides to join in. She sneaks into the library, pushing Gai's hand aside to take over, her mouth and fingers working in tandem to bring Gai to the brink of orgasm, her own desire evident in her heavy breathing and flushed cheeks.