ok i have been lurking around here for a while and have run into a problem so I need some help. when im having sex with my GF i just can't seem to cum and this has been a problem with others just haven't been with them long term enough for it to matter. but with my current one she is starting to think its her. i can stay up the entire time and then some and im right there most of the time but just cant get over the edge. just lookin for some idea on what might help fix this