>>4413332Bent backwards? It looks pretty normal in your picture, he's bent over and the penis is quite flexible at the base for most people. For me, my erect penis points straight down when I'm in a normal standing posture, but it is flexible enough that it can lie on my belly when I'm lying on the bed as well if that makes sense.
As long as you're not twisting the penis or bending it midway along the shaft I think it can angled with a fair degree of freedom.