Holding penis out straight increases girth

I have an upwards curve.

When you say you feel it, how do you mean?.

When I stretch out I feel a pull throughout my whole penis but mostly the base.

When I stretch myself straight out, I don’t really feel a stretch anywhere, it just feels like an immovable resistance, like pulling a rope that it attached to a brick wall, no stretch. And from the top of the shaft, I can easily feel (with the other hand) a tight ‘piano string’ type thing running from the base to the glans.

It’s always been like that since before I started PE and for ages I just assumed it was the same for everyone.