I knew I was measuring it wrong the whole time. Clearly you need to start measuring from inside the balls!
and remember not to count the added total created when a tape measure goes over thick veins
It’s a bicep!
It needs more veins!
That’s a phallicy.
The first few inches are silent
Your comment brings up the age old question of how much of the total length is actually part of the action.
That all depends on the position. It’s more important for ones like prone bone and doggie, but less for ones like missionary and cowgirl.
Why would this exist?
It’s a French curve ruler. IIRC the original French curve was used for drawing and drafting, having multiple curves and cutouts. This was developed with the graduations and solid shape specifically for sewing.
Obviously dirty seamstress dick jokes as well.
My research shows that it was originally invented to check the wild claims of those bragging that they were larger than they actually are
It’s important to remember that this angulation is based on the top percentage that have this standard curvature. It will not be accurate for those outliers whose angle is higher or lower than the norm




