Blow jobs can be lots of fun in the shower- just gotta watch not to get too much water in your ears though.Ok- if you like to shower with your guy he's what I would do.
That is of course if you no longer want to be a bf virgin (which is fine if you do) but here are some tips if you are unsure. Not saying that you are- you just may not want to I dont know. :O
First put the water on so its nice and warm, not too hot or else you'll burn your guy (not to mention yourself). Get undressed, let him get undressed also. You step in first then let him follow you. Wet your hair and let him wash it, then take a bar of soap or a mesh sponge and lather up really well, let him clean you really well with it, let him get to all your sensitive areas(breast, between your legs, butt etc) (if hes not already hard then he will be now 
) Of course don't forget to kiss him and show some excitement. Next switch places so that hes in the water. Let him wet his hair, wash it be sure to use the tips of your fingers (be careful if you have long fingernails- nails on the scalp hurt)let him rinse himself of the shampoo (if he has long hair conditioner may be in order but seeing as most guys dont have that problem- Id say worry about it not) Then take the bar of soap or mesh sponge and lather him up really well. Pay special attention to his little friend ( )The soap combined with the water will not only clean him down there but also provide a warm, wet slippery feeling getting him even harder. Be sure to rinse the soap completely off him- there may be a slight soapy taste when you go to give him his reward for cleaning you so well but its nothing you cant handle Im sure. Finally when both of you are nice and clean. Cuddle up close to him and rub your nekkid body against his- take his scrotum in you hand and massage it slowly stroking his penis with your other hand. Get down on your knees in the shower, be careful of where the water is- if you need to switch places again so that you are in the water (ie your back is to the shower head) then do so- it may make it easier. I also suggest that you have one of those little floor mats for the tub, this will do wonders for your knees. Start by holding the base of his penis in your hand and using your tongue to caress the tip of his penis. Place your hand on his scrotum so that your fingers are in the direction of his anus. Rub the spot with your hands between the anus and scrotum (thats the male G-spot and the closest place to his prostate outside the body)as you are doing this take your tongue and lick from the bottom base of his penis to the tip and back the other way on top. When you get to the base on the top put him in your mouth (if hes a big guy, as much as you can fit and then put your hand on the remaining portion) suck hard, becareful not to put your teeth on him (teeth are the enemy of a good blow job)Next take your tongue and make a circle motion around the tip of his penis be sure to tickle him with it. Take your tongue and on the underside of the tip of his penis flick your tongue a few times. Be sure to take him in and out of your mouth a few times moving back and forth against his penis. It should only take between 2 and 15 mins for your guy to get off. In the shower its an added bonus because you have the water to help keep his penis nice and wet and it makes it easier for you to slide you mouth over it again and again.
If you arent a fan of the shower this can easily be perform without the soap etc but cleaning him up makes it a little more fun, plus it gets him a little more exicited if he has to wait for it.
Thats the way I would do it. I havent had many complaints about my "style" but there are tons of techniques that you can use- you gotta find the ones that work for you.
Why do I have a feeling she wasnt asking for blow job technique advice. *shrug* Hey Im always looking for ways to improve- guys let me know what you think of it- this way I dont feel like I wasted my time
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"I ated the purple berries...they tasted like burning"
