This guide is intended to help you give your man, and I assure you, for as long as your hands are on him and you follow this guide, he will most surely belong to you, an amazing happy ending massage. I assume you can already give a good massage, so this won't focus on the technical details of the massage, but rather how to heighten and eroticize the experience. There will also be some short vignettes for the prurient and perverted to read, even if uninterested in giving massages themselves. Enjoy!
Step 1: Set-Up
The important thing to remember about the ambiance for a massage is that it should be like correct grammar and spelling. You're not trying to have the recipient focus on the music, the light, or anything else. It should simply be there to coddle the senses so that they can focus on touch, so that they aren't jarred out of the experience by anything distracting. Low light and soft music that barely registers upon the listener are best: white noise, nature sounds, and calming instrumental music that flows in one ear and out the other without leaving any sort of impression. Scents are good, as well, but again, should be only enough to keep the mind focused on the massage, rather than drawing attention to the scent itself.
You'll need to pick an oil for the massage. I like sweet almond oil, myself, but you'll have to pick something that works for you. I'd avoid a scented oil, just because it can be a bit strong and distracting. I've got a strawberry scented bottle of oil, but using it just makes the room smell like a dessert and I get hungry, and you don't want to be hungry while giving a massage because you might bite the wrong thing.
Make sure that the room is a good temperature. You want your recipient to be comfortably warm, especially for any times when their towel is off their body. If the room's too cold, they may have a difficult time showing their excitement. If possible, it can be a good idea to warm up the towels beforehand. Just toss them in the dryer for a bit. They won't keep their heat long, but if the room's a bit chillier than you like, it can certainly help.
I usually use two towels. A larger one to drape the body, and a smaller one to cover the eyes after their face is massaged. One advantage to having a second towel is that, with their eyes covered, your own movements are more likely to be a surprise. People are also less bashful if they can't see you, so your recipient will be more likely to be willing to let you work your magic. Additionally, the sensory deprivation will amplify certain other sensations. Be sure you have everything you need in advance so there won't be any interruptions.
Step 2: Build-Up
For the actual massage itself, a lot of teasing is very important. You want to heighten their excitement and expectations before anything truly explicit actually occurs. They should be aching for your touch, for the relief that only you can bring them, long,
long
before you intend to actually succor them.
While massaging a man's thighs, go as far up as possible. You'll find yourself brushing against their scrotum, but technically you're only massaging their leg, so there's a nice bit of plausible deniability there if things aren't yet certain. Reaching under their upper leg, too, is a pleasing sensation for them.
One place I especially like to tease is the perineum and surrounding areas while the recipient is still face-down. Find an excuse to massage his tight ass, such as how many muscles there are in that region, if you need one. While you're massaging lower, let your thumbs drift to the area between his balls and ass and gently knead there with your thumbs and knuckles. It's a very unique feeling, and he'll love that exquisite combination of vulnerability and pleasure that it brings him.
Once he's on his back, the face is an intimate area to massage. You can linger on his lips, rest your chin on his forehead, gaze into his eyes in case he opens them, things like that. It's also a natural time to compliment his appearance, telling him how you never noticed what a handsome face he has. If he has a beard, let your fingers run through it.
As you massage his broad, manly chest, be sure to pay attention to his nipples. Just a quick flick or two is enough to tease and get his attention, although you can massage his pectoral muscles for longer and just ensure your fingertips rub them especially. I think the stomach is under-rated for teasing possibilities. In my experience, your fingers under the towel, waltzing down his abdomen, will make him tingle in all the right ways. Wander down his happy trail and through his pubic hair, even bumping against his shaft while you caress his stomach. If you're particularly well-endowed, stand above his head while you massage his stomach, and lean down so that your plump, round breasts rest gently upon his face. It'll be a memory of mammaries he won't soon forget.
When you massage his arms, find a good place to rest his hands. His arm will be totally in your control, so take advantage. If you're quite forward, you can guide his hand to your breast while you stroke his arms. Otherwise, you might guide it to your stomach or hip or thigh or cheek, depending on what you want to highlight and your relative heights.
And lastly, the thighs are the best place to tease, if only for their proximity to your true prize. As before, go as high up as you desire. By now, he's hopefully rock hard, just waiting for your touch. If his towel is still covering him, you might move it just to expose one thigh, leaving it in the middle, where his hard shaft's eagerness might be enough to push the towel off of itself, exposing it to your ministrations. If his cock is exposed and up, a nice trick is to massage the thigh opposite yourself. That is, if you're standing on his left side, use that position to massage his right thigh, so that his hardness is between you and your goal. It's a wonderful opportunity to brush against his manhood with your hands and wrists oh-so-innocently.
Part 3: Climax
And finally, it's the main event. I like to categorize the various ways to finish things into four broad categories. I'll explain each a bit and include a bit of a vignette to demonstrate. If I were to plot these on a graph because I'm a math nerd, the two axes would be his pleasure and your pleasure. Both of these are just purported pleasure, though. Obviously, in all these cases, hopefully both you and the recipient are thoroughly enjoying everything. But the difference lies in, outwardly, who is this supposed to primarily benefit?
The Nonchalant
One possibility is to approach the matter as nonchalantly as possible. Simply treat his cock as though it were any other limb. This technique is low on both your and his purported pleasure, because if an orgasm happens, it either wasn't intentional, or it wasn't a big deal. You were just rubbing and
oops
, or you saw a friend with some stiffness and you were there with a helping hand. It wasn't sexual at all. Just a few good pumps to get rid of that last bastion of stress, and all that tension came squirting out.
If you're giving a nonchalant happy ending, you probably won't even mention it. Once he's hard, you'll just move the towel aside and pump away casually until he finishes. Or you may not even give proper strokes, just massage it gently as you would his arm or leg, squeezing and rubbing, until all his stress goes away. When it is time for him to cum, you can make sure there isn't a big mess by aiming his cock either between his legs or by pinning it against his stomach so it all just goes on to his abdomen. The latter might ruin his orgasm a little bit, but it's not like that's a big deal, after all.
Or if you're doing it more as a friend because this sort of thing isn't a big deal at all, you might ask him if he wants you to take care of it, and once he inevitably agrees, give him a quick finish so he can focus on the rest of the massage. But it certainly isn't anything to make a big fuss over. Just finish him off, wipe him up, and continue with the massage. His cock is another limb, no more special than any other.