True Blood star Anna Paquin is reluctant to go under the knife as she's certain cosmetic surgery would limit her choice of acting roles.

The actress, who is currently expecting her first child with husband Stephen Moyer, admits she sometimes feels insecure about her physical quirks.

However, Paquin insists she'd think twice before undergoing surgery as she'd have fewer acting opportunities if her looks were more generic.

She tells Zooey magazine, "Interestingly enough, I don't really care about my teeth, but I think any woman on this planet could say, 'I wish my a** was smaller, my arms were thinner and I had green eyes not brown.'

"I think anyone is as critical as they have the energy to self-obsess, but I also know as an actress you are more limited if you interfere with your looks. If you have a whole bunch of work done with your teeth and your face and your boobs then you're only going to play modern people. That's a big choice to make. Very limiting."

She also told the magazine "I'm sure for some people saying they're bisexual feels less scary than making a statement that they're gay. For me, it's not really an issue because I’m someone who believes being bisexual is actually a thing. It’s not made up. It’s not a lack of decision."

"It's not being greedy or numerous other ignorant things I've heard at this point. For a bisexual, it's not about gender. That's not the deciding factor for who they're attracted to."