I have followed megan fox. From what I have gathered from both astrology and her life path is that she is in fact has a scorpio rising. Firstly when simply researching her early childhood you can clearly see the pluto conjunct the ascendant. For example if you read this interview megan fox did for Rolling stones you can confirm her pluto rising.
Interview link:
http://www.megansafox.com/gallery/thumbnails.php?album=279 (If the link does not work I can provide the interview once requested).
Namely to outline what is mentioned in the interview, firstly she says her birth was difficult (experienced by most who have pluto rising), secondly she says she was severely bullied at school and was called a whore for no reason (Sexuality is prominent in the physical facial features of plutonians). She says she never made friends which again is what pluto rising people are known for which is being loners. Now many of you has said she publicly appears to be a leo but that can be alternatively explained as a result of a leo midheaven. She always expresses how shy she is which is a trait of a pluto rising where they are seemingly shy.
Some charts show her to have a retrograde pluto in scorpio conjunct her scorpio ascendant that may further intensify the effects of pluto. Additionally would explain the difficulties she has faced with a retrograde planet such as pluto occupying her first house and conjunct her ascendant. If you watch any of her interviews she is very variable in her behavior where at times she is very expressive and vocal and at other times timid and shy. This is an indicator of pluto conjunct her ascendant where these people either express themselves enthusiastically however without revealing their true selves or being very seemingly shy.
People with pluto conjunct their ascendant are said to face marginalization from others. "
I’ve learned that you can’t please everyone. So don’t even try it. It’s a waste of time trying to make everyone like you. Just be you. I’ve learned the hard way and in the end, some people are just so full of hate that no matter what you say or do, they’ll always have something to say. They’ll never like you. So **** them." Megan fox . The hate she has experienced indicates the pluto rising.
Small talk is also said to be avoided by first house pluto individuals "I like to cut through the BS. I don’t like small talk and I don’t like to have to be a cookie cutter." Megan Fox
Megan always mentions how insecure she is which is not a trait usually of a leo rising which is the complete opposite "
I'm self-loathing, introverted, and neurotic." Megan fox.
Additionally Megan is very private in the sense that she has no social networking accounts "Im one of those people who fiercely guards their privacy, so I hate doing interviews." Megan fox. She also says she does not leave her house "I have no friends, and I never leave my house" Megan fox.
Below are links that outline the traits of pluto on the ascendant:
http://scorpioland.org/pluto-first-house-act-like-a-scorpio/
http://darkstarastrology.com/pluto-ascendant-aspects/
Lastly I would just like to say these are just a collection of my personal observations I do not have concrete evidence. Please read the rolling stones interview as it is very informative and reliable, it will help you confirm her actual rising sign.