Yes, I have asked my wife numerous times to make me cum thru masturbating me. She prefers I wear a condom or use a towel under me thou - just so the sheets don't end up all wet. She doesn't like the idea of getting my cum on her hands either. But it feels awesome when she does it thou.
A good handjob involves a lot of handwork and a good handjob involves a lot of mouth work. I prefer to masturbate instead of a no-hands blowjob or a no-mouth handjob .... and I love to masturbate. After ten or more years without any sex, last year my wife started masturbating me again .... and she'll do it every week or ten days. It has settled into a superb routine, but lacks variation. Starting from soft, she teases my foreskin with the tip of her tongue, one finger, and her thumb .... very lightly caressing as I grow hard and the desire for her to bare the head grows stronger and stronger. Once she has my foreskin pulled slowly back, her tongue, teeth, lips, eight fingers and two thumbs slowly and teasingly play my cock like and accomplished musician on her favorite instrument. She's usually good for thirty to forty minutes of this before she tires and brings me to orgasm .... usually in the air, but sometimes in her mouth. I do not miss fucking at all!
when I was married my wife wasn't too keen on it.. she said "you can do it yourself" although once when she asked me to demonstrate she got quite turned on and we ended up fucking..
I loved it when my ex-wife masturbated me, especially if we were high watching porn and she was talking about the sex on the screen.
Unfortunately some woman freak out if they get asked to touch a penis - possibly the thought of having the cum squirt all over their hands? Yet they are more than willing to let a guy or woman touch theirs!
Yesterday afternoon (when we had the house just to ourselves), my wife was doing some housework & while she had her back facing me, I took off the few clothes I had on & got her to turn around & asked her if she would like to spend some time in the bedroom masturbating me. She agreed to it, but only if I wore a condom so I didn't cum on her hands. I placed some lube in the condom & also on the outside & all over my scrotum. Then her hands were able to slip & slide all over them. I just lay down with my eyes closed & enjoyed the uninterupted time we had. Occassionaly I'd partly open my eyes to see what the expressions were like on her face. She seemed to be looking at my erection most of the time & liking it a lot - so were I. After about 20 mins (?) of her sliding & rubbing her fingers all over my penis & scrotum, she was discovering where I felt the best arousing sensations & then I just had the most enjoyable hand job she had ever given me. I had an erection the whole time & the orgasm she gave me was incredible. I look forward to our next sexual encounter when I'm wanting her to masturbate me - without a rush to orgasm & just to enjoy all the enjoyable places she massages me, even if intercourse doesn't take place - I actually did enjoy it more than intercourse. More hands on approach.
Do this quite a lot but I do not ask her I tell, she will then get me off. She has to do as she is told... I have even made her do it whilst talking on the phone to her mother.