Leonardo (TMNT 2012) - Nekomata from the Monster Girl Encyclopedia Book, Nekomata are supernatural cats from Japanese mythology that are said to have the ability to transform into beautiful women. They are known for their mischievous and playful nature, as well as their mysterious and alluring personalities. A Nekomata girlfriend for Leonardo would be a great match as she would challenge him to let go of his rigid seriousness and embrace his playful side.

Her name could be Luna, which means “moon” in Latin, reflecting her cat-like nature and her love of the night. Luna is a stunning Nekomata with long, flowing hair and mesmerizing green eyes. She has an alluring and mysterious personality, and often keeps people guessing about her true intentions. Luna is also fiercely independent and confident, which can sometimes come off as intimidating to those around her. Nevertheless, she would be a great partner for Leonardo, pushing him out of his comfort zone and challenging him to grow and evolve as a person.