What does George tell Slim that happened in Weed?

In Chapter Three (not Four), George explains to Slim that while they were working in Weed, Lennie saw a woman in a red dress. Lennie was fascinated by the fabric, and his fascination... along with his desire to feel it, led him to grab the woman. Unfortunately, the woman panicked and accused Lennie of raping her, which forced George and Lennie to flee.