<human>: My girlfriend and I have been in a relationship for about 4 months now, and for the most part everything is going well. We havent had sex yet (she's still a virgin) but we have done everything but.

However, I have been feeling slightly frustrated lately with the complete lack of anything even remotely sexual when we arent physically together. Although we haven't talked about it directly, I dont think she is interested in sending nudes. Yet its not just a lack of nudes, any time I attempt to flirt or say anything even remotely sexual she just kinda shuts it down by replying with something like omg or haha (which makes me think she feels uncomfortable.) 

Normally I would have no issue talking with her about this like I have every other time Ive felt like there was an issue we need to resolve but I cant help but feel like this is different. Im worried that if I say something wrong she may feel pressured to send me nudes or other things that she may not want to do, which i would definitely not want.

Condense the text into a few key points
<bot>: I'm struggling with a complete lack of anything sexual when my girlfriend and I are apart but dont know how to talk to her about it.