Lets see...let me put it is this way: You want it, right? And you say she is hesitating because you're not showing that you want it? Or, are you wanting to want it, but then stop yourself from asking?

My current partner is the dominant one in the relationship. She has told me multiple times that her being on the receiving end is something she has to be in the right mood to do, she has to mentally prepare herself for it, and while I don't get to do things to her often, she has her moods and moments where I can spoil her, and I am patient and understanding because she explained to me early on that this is how she works.
If you have to be in that right mood, then tell your girl. Tell her it's something you only want to do when you feel it., because you need time to prepare yourself for it. But, if it's something that you want but you're just not expressing it...well that's a problem.

Relationships are all about communication, and even if you have a tough time saying something, even if your mouth isn't doing the talking, make sure your body is. Guide her hands during sex, aid her in touching you in the places you like being touched. I wasn't sure my girl liked having her breasts played with because she had not shown interest the first time I had tried (she laughed actually). But one night, she moved my hands to touch her (without warning) and as I was messing with her, she grabbed my head and lead me to her breasts. She did not need to say anything, it was really as simple as that.

If you're girl is nervous and shy as to what to do...guiding her is the best thing, helping her out is all you can do, even if it takes multiple times before she is comfortable enough to do it on her own.

One more thing...make sure you have both communicated who you are sexually. I am a very sexual being that loves receiving, but equally, I can get off by pleasing another person. My partner is a little different. She gets off more when she is pleasing someone else, especially being dominating and using a strap-on, for her, it's more of a mental thing...but because we communicated what we like and how we are, our sex fits both of our needs and we are never hurt or disappointed with the other person.
Talks like this can be awkward at times, but they are necessary for two women in love who want to make love often with their bodies.

So yeah, I just think a little bit more communication in the bedroom will go a long way :)

I think you just made my day. I showed your reply to my girlfriend and she said "I think I just met my soul sister" so yeah, the way you describe your girlfriend sounds a lot like how I feel. I did the laughing thing as well and I've repeatedly said that it's mental for me. We talk a lot it's just that I'm not even sure what I want. I get off on pleasing her but I don't always want to be touched But I want to want to be touched. I don't want her to feel inadequate or like I don't want her when I do. She's also my first consensual sexual partner so I've never gotten to explore what I like physically. I don't even know if it's possible that I just don't like to be physical. I feel like I'm a freak or I'm missing something. I want to like being pleasured.

You are the way you are...and everyone is different like I said before. My girl does not always like to be touched, but because we discussed how she feels and what gets her off, I can be happy knowing that she is pleased just in pleasing me, and that occasionally she lets me spoil her so that I might get my fix in pleasing her as well.
Since this is your first consensual-thing, it might just take time for you to eventually get around to liking being pleasured. Who knows? Either way, you will both be fine as long as you come to understand one another's needs and fit your sex life to match that...

Glad I could help :)