Maybe you've tried this already, but try working your way up to the 100%-from-her oral-gasm. Given that it's early in the "relationship", maybe the communication part hasn't taken hold yet, so you can't really tell her how you'd really love to "get over the hill" from the bj, and have her rise to the challenge...
...so when you're getting really close, just casually pull out and finish yourself off (you can do
that, right?)...maybe she likes it somewhere special? Do that a few times, then move to having
her finish you off with wet hands, and eventually you'll get to the point where you can do it just by thinking of your/her hands while no hands are being used.
...my 2¢
edit: Oh! I nearly forgot to say "congratulations, now stop complaining that your gf gives wicked head"
