After a prostatectomy, you won’t produce semen, as the prostate and seminal vesicles have been removed and the vas deferens are sealed. You will still feel the muscular spasms and pleasure that accompany an orgasm, but you will not ejaculate. This is called a dry orgasm. Some men notice that their orgasms feel less intense. You may worry that a dry orgasm will be less pleasurable for your partner. However, most partners say this is not the case, especially as many do not feel the release of semen during intercourse. Semen production may also be reduced after radiation therapy.