My Hair is Extremely Curly and Thick, Should I Get It Permed Straight?

It's like this:
http://www.google.co.uk/imgres?imgurl=http://prettyprettypretty.com/wp-content/uploads/2009/12/BackBlondeCurlyHairSmall.jpg&imgrefurl=http://prettyprettypretty.com/2009/12/08/in-the-news-the-curly-hair-gene/&usg=__jBdDiG29AP-B5VxCQwXtnzSyjEA=&h=314&w=283&sz=80&hl=en&start=0&sig2=un5GrXTD1JWi5PNygmeZeQ&zoom=1&tbnid=9KvdgaUMrOshzM:&tbnh=153&tbnw=138&ei=ipGwTKrVN4XKswb9qtj_DA&prev=/images%3Fq%3Dcurly%2Bhair%26um%3D1%26hl%3Den%26sa%3DN%26rlz%3D1B3GGGL_en-GBGB350GB350%26biw%3D1680%26bih%3D820%26tbs%3Disch:1&um=1&itbs=1&iact=rc&dur=401&oei=ipGwTKrVN4XKswb9qtj_DA&esq=1&page=1&ndsp=40&ved=1t:429,r:32,s:0&tx=92&ty=53 …

Obviously that isn't me but my hair is like that. It's also really thick and hard to manage. If I straighten it, not only does it take me FOREVER, but it rarely stays straight. My friend said if i got it permed straight, it would go like this if I ever left it to dry naturally :

http://www.google.co.uk/imgres?imgurl=http://images.beautyriot.com/photos/ashley-olsen-wavy-blonde.jpg&imgrefurl=http://www.beautyriot.com/celebrities/ashley-olsen/photo-ashley-olsen-blonde-wavy-hairstyle-pid54&usg=__2u3Stum6obgcbECgcUVopfK3jC8=&h=544&w=400&sz=51&hl=en&start=110&sig2=iHUaRXOwajE7yqAgmoE3yQ&zoom=1&tbnid=P5Q77sFRrBloMM:&tbnh=164&tbnw=121&ei=N5KwTJ3AEcbKjAfb4KiKBQ&prev=/images%3Fq%3Dwavy/straight%2Bhair%26um%3D1%26hl%3Den%26rlz%3D1B3GGGL_en-GBGB350GB350%26biw%3D1680%26bih%3D820%26tbs%3Disch:10%2C1732&um=1&itbs=1&iact=hc&vpx=419&vpy=451&dur=1139&hovh=262&hovw=192&tx=100&ty=94&oei=BJKwTLfMAszMswbF-IyDDQ&esq=8&page=4&ndsp=37&ved=1t:429,r:2,s:110&biw=1680&bih=820 …

Is she right? Or would it be poker straight?
(Sorry guys, I'm not sure if the links work, if they don't please could you paste them into your URL bar)

Suggestion:

NOOO! don't. its gonna make ur hair PIN straight. and it might now even look good with the thickness of ur hair. trust me. once you perm straight it, u can't go back. i have curly hair just like what ur talking about and i just scrunch it. it looks really good, scrunched with thick hair.