New Here, Need Advice

Hi, I just joined this group a couple of hours ago. I'm 17 and have been drawing since I was 3 maybe. I've been wanting to try my hand at drawing nude characters (mainly female) but I have no idea what poses to put them in. Also I don't want to copy off of someone else's work, I want to be as original as possible. It should be noted that my parents don't know I want to do this and there's no way I can get a live model (I'd be uncomfortable with that anyway).

Any advice or suggestions for drawing nude people or anything in general?