Penis Curve?

Hey so I don’t do PE but I noticed that my penis curves upwards slightly, was wondering what the cause of this is?

I used to masturbate lying down alot growing up, and I slept on my back, so I don’t know if that position has ‘molded’ the shape of my penis.

Is this normal?

Its normal, and its actually a very handy thing to have if you utilize it well. When having sex in missionary position, your penis can rub against the g-spot of the woman, creating extra pleasure.