<human>: Summarize the given text in a few sentences.

Oops. Posted to /r/askwomen and was removed. So technically an x-post.

My (relatively) new girlfriend has significantly larger breasts than any girlfriend I've had before. We are not at the point of sex or anything more than groping/steamy make out sessions.

She is completely innocent, and has never done anything before so when I asked her what she thought of what I was doing or what she liked, she couldn't tell me anything.

She let me "play" with the melons last time we made out, but I noticed she wasn't into it, and moved back to just making out. 

I have no idea what to do with these boulders (DD) and how I could bring her pleasure while "playing" with them.

How can I bring sexual pleasure to my girlfriend while fondling her breasts, and not going any further than that?
<bot>: Girlfriend has big boobs (DD) and I would like to know how to bring her pleasure without going any further sexually just yet.