Kegels exercise as you know is for the pelvic floor muscles. Once you can isolate the muscle action-like holding urine during urination act or holding gas; it is possible for you to do it in any position like sitting, standing or even walking. It is beneficial in a wide variety of incontinence and dysfunction conditions. However since you have erectile dysfunction, congenital conditions such as spina bifida or any other neurodevelopmental issues has to be ruled out. A team work of neurologists, neuro surgeon, urologist and andrologist can help you to have a probable diagnosis of your condition..