Probably the majority of penises bend - up, down, to the right or to the left. This curvature is natural and happens with or without a history of masturbation. In other words, your masturbation had nothing at all to do with the shape of your erection or the direction it heads in. This should not cause any problem at all with intercourse, unless the bend is extreme. The typical curvature of an erect penis is gradual.
Some men do, however, have a condition that causes a severe bend, almost at a right angle.
This is very unusual, often follows a traumatic injury to the penis, and requires medical attention. Bob Birch Robert W. Birch, Ph.D., is a retired sex therapist, now identifying himself as a sexologist and adult sexuality educator. He now devotes his time to writing educational and self-help books for adults.