Lettuce is the fursona of FurAffinity user https://www.furaffinity.net/user/lettuce~. He's a five foot bengal cat with an affinity for not wearing any clothes and getting transformed against his will.

Several pieces of art show him being transformed into a girl, sex toy, or both.

Due to the character being canonically male, posts with Lettuce as a girl imply the crossgender tag.