con: the reaction when you try to tell your sister.

pro: using it for things like sports and school.

yeah I would think my sister would somewhat understand...not at all. I couldn't even think of it when it comes to my parents.

This is like asking - what are the pros and cons of being me.

Pros - I am in amazingly good health, I love my life and my few close friends, I have the best dog in the world, and people often mistake me for being five to ten years younger than I actually am. (And I'm not even old enough for age to matter yet  - I'm only 28). 

Cons - I have a massive load of student loan debt that I may never crawl my way out of, people rarely listen to anything I have to say, and my family hates me.

Pros- Understanding animals more, playing with animals, playing with kids like an animal, being different, SCENT ROLLING!!!! having a cool growl, howling with dogs, being able to mental and phantom shift, being awesome XD, walking on toes, can't think of any more right now...

Cons- No one understands Therianthropy nor wants to understand, not being able to be myself around others, can't find others like me, can't even find wiccans or vamps or anything, my parents don't trust me on the internet now that they've seen the site I've been going on, getting headaches, mental shifts at random times, (One time I swear I looked like I was on drugs, I could NOT stop moving my leg, I wanted to run SO FREAKIN BAD. God, it was funny.) Anouwah says phantom shifts are annoying, she sits on her tail sometimes XD, wanting raw meat, instincts to chase small animals, wanting to be out in the woods but I live in the CITY and there are no woods around 'cause this is Oklahoma! wanting to shift, wanting to be near other therians, I guess that's it. (Wow my Cons section is bigger than Pros. XD)