What Trish said ^.
I don't think a surface piercing is a good idea for a first piercing. They are complex and hard to heal, they have a very high rejection rate. And as for the length of bar you want... you'll need to look around at piercing shops. Find one that is HIGHLY respectable and has the correct bars to do the piercing right.
I don't think this is a good idea. It takes a careful aftercare regime to heal a surface piercing, and you need to make sure you can heal a regular piercing (like ear lobe or lip), okay before trying anything more complex.
And as for the "on a guy comment" it's your body, ultimately you should to do what you want with it.
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"My name is Butters, I'm 8 years old, I'm blood type O and I'm bi-curious! And even that's okay, because if I'm bi-curious and I'm somehow made from God, then I figure God might be a little bi-curious himself!" Leopold "Butters" Stotch.