Is it normal to look at my friend's private parts?

My girlfriend (we are both girls) lately has a habit to ask me to look at her private parts. Like, out of nowhere, she lowers her pants to ask me if she trimmed her pubic hair in the right fashion, she makes me look at her boobs to see if they are strapped alright, or if the one nipple is changing color, or if her left boob is getting swollen, she even asked me to smell her vagina.
So I was wondering if she is becoming a lesbian and this is the way she is trying to tell me that she is attracted to me or is she just being insecure?
Should I ask her directly?