"Me and my girlfriend went about it for about 7 hours"
You say nothing about breaks. And you even say as soon as you pull it out it gets soft after 3 seconds. And that you then have to start all over. You say nothing about you taking breaks, and therefore i cant use your reply to anything. And you also dont say how long the breaks are. If you for an example take a 1,5 hour break 4 times its going to be 6 hours in total. Which makes it only 1 hour of actual activity. Breaks do alot to the so called "time" you are active as you are supposively bragging about.