I want to take it to the next level but I'm not sure how

My girlfriend and I have been dating for about half a year now and we're both open to the idea of having a sexual relationship with each other but I'm not sure how to initiate it. We haven't done much aside from kissing and cuddling but i kinda want to uh "please" her. But not sure how to go about it.

Any advice? There's not much advice for lesbian couples on this topic...