I may be a little off base here (still pre-HRT and all), but GGs masterbate, right? Just different tools. It seems natural to need to release the sexual urge/need/tension. I'm (very close) 48 and I still 'need' to have that release. I do kind of feel its a betrayal of sorts, but for me I have always perceived the act from a female perspective - like the penis wasn't mine but trying to envision as I'm a girl masterbating or being penetrated. It has never made me feel like a man - nothing ever has. The drive is there in both men and women (generally, I think).
I don't intend to offend anyone who disagrees, I'm only speaking from my own limited perspective.
Deanna