Post your pumping pics

Question: Does the pump lengthen the penis or is it just a 10-15 minute extension?
I've read (i think) its just for a short while, as pumping makes for more blood flow which gives it the size, but after that, it goes back to normal, happy to be wrong if i am.
 
So you start from a "average erected guy size" and gets up to 22 cm in length and 17 cm in girth.
Well 15 is a bit more in circumference than average, but as in comparison.
Started pumping 4 weeks ago.
In younger days I measured 19 cm in length and 16 in circumference.
In older days I reach 18 cm a good day but have grown 1 cm thicker.
When I started pumping I reached 18,5 cm but went to 19 rather quick.
Today I can pump up to 20,5 cm.
Haven´t been able to measure the circumference pumped.
The XXL cylinder I use have a diameter of 7 cm.
Now I pump without any lube but have been thinking of use some then I have the feeling that my glans sticks to the cylinder wall when passing 20 cm.