A good gay male masseurs always use high quality massage oil, sometimes infused with essential oils for a truly revitalising experience.
All this is great for massage, but possibly not too great if you need to get dressed and head back to the office, or off to dinner.
99.9% of masseurs will have shower facilitates and happily let you use them at the end of your massage. If you want a shower at the start of your massage then this is ok too. just ask.
Please bare in mind your therapist will leave time at the end of your massage so you can have a shower. Also bare in mind having a shower either at the start or end of your massage will be within your massage appointment time.