I could be completely wrong here, but my personal experience is that it is a lot harder as a female bodied (and female hormone dominated) person to get a six pack. There's something about the fat distribution on the lower part, at the thighs and lower stomach (near the groin) that makes the lower two abs very hard to see for women. Doesn't mean they aren't there, but they are just less visible. That pooch is very hard to get rid off, but not impossible. I always had a 4-pack as a female, but now that I use testosterone, it's turning into a six pack. Probably because the fat is moving, or disappearing. I don't know. Again, this is my experience and doesn't mean that it is what happens to the majority.