<human>: So my girlfriend is really into online role playing, and that in itself doesn't bother me. I've dabbled before but not really my kind of thing but I understand that it's something that she really enjoys. 

However sometimes she role plays sexually, and its always with the same person. It's her best friend that she has known since middle school and they have been role playing together since high school and still continue to do so now that they are at separate colleges. And it really makes me feel weird; my GF will get online and role play sexual and casual relationships with this girl. 

I asked her if she wanted to roleplay with me but just got instantly shot down which didn't help my feelings either. 

Is it fair for me to ask her to stop role playing sexual situations? To me its really no different then if I were to start sexting one of my friends.

Can you condense the text into three sentences or less?
<bot>: My girlfriend likes to roleplay online, both sexually and not sexually; I just want her to stop the sexual aspects.