Yes, if you wish. Your priority is for you to enjoy the massage, with no pressure to perform. Often times, most men believe that orgasm and ejaculation are part of an intimate massage. It's important to know, that this does not have to be the case! You are welcome to explore new paths, and thus to enrich your sexual life. Your partner will thank you later, when you are able to hold on to your arousal for longer, and therefore pay more attention to her.