JLOCaliTCB

Hi my name is Jeniffer I am from California.. I just downloaded Paint.net yesterday and I need some help with Combining a face from one picture and putting on someone elses body in a different pic.. I have no idea how to do it... I want it to look like my face in on another persons body.. I hope you know what I mean? Please help me...??? Thanks I am a huge ELvis fan and want to put some pics of Elvis & I together .. But I need to replaces the faces with my faces... TCB & TLC Elvis Rocks!!!!