"If you have social anxiety, you're straight, and have an easier time talking to the opposite sex I envy you greatly." = same here
I have trouble talking with women that I feel attracted to. The hotter the girl the harder it is for me.
If she is a complete stranger, I'm terrified to take the initiative.
If for some reason, if I can't have a romantic relationship with her, it calm's me down.
So no matter how hot is a girlfriend of a friend, since I'm sociably forbidden to have a relationship with her, I have no problem at all talking to her.
Although once one of my brother's hot GF hugged me in a certain way that made me really uncomfortable.
Also I have trouble talking to any girl that seems to be attracted to me, or if there is any kind of pressure for me to "hit on her".
But talking with any gender about anything sexual, or my past girlfriends (or the lack of
) makes me really uncomfortable.
So in the end, since I'm attracted only to women, I find it much easier to talk to men.