Because of the apparent shortage of studies with the main aim of investigating sexual side effects other than ED after EBRT and BT, the investigators want conduct a single center cross-sectional questionnaire based study which will be comparable to our study on RP side effects [6]. The investigators hope to document how many patients are affected by UI during sexual stimulation, altered perception of orgasm, anejaculation, orgasm-associated pain, penile shortening, altered penile curvature, and penile sensory changes. Furthermore we want to identify predicting and associated factors to better understand why and when these side effects occur.