<human>: So last week I was at a friends house it was me and maybe like 6 girls all about 20 years old. One of them was getting ready for a date but she was dressed kinda slutty and was really worried about it. I offered to give my personal opinion on her outfit because I'm a dude and I'd tell her what i thought was to far ect. 

I walk into her room and she's completely naked. I turned away quickly but she told me not to worry and she's "strangely ok with this." I told her we've hit a weird level of comfort and left. 

The problem is this. Why is she so ok? We don't know each other that well and I got the full show. Could she be just hard to embarrass or have I become a gal pal? I only really want to be friends with her but still the fact she's already ok with being naked in front of me is worrying.

Our relationship is really friendly I guess. I visit her at work a about once a week (she works at the our college) and we talk for a while. When we go to parties I sometimes wingman for her or introduce her to guys she doesn't have the confidence to talk to.

How do I remain friends with her without becoming one of the girls?

Summarize the given text in a few sentences.
<bot>: I saw one of my female friends naked and she was strangely ok with it. Now I'm worried I've become one of the girls.