Squirrel wrote
I'm not really into them but have usually enjoyed the ones I've had, especially if it was a precursor to a blowjob or fuck.
The thing is I can do a better job myself, not because I've had plenty of practice (altho' I have) but because I've got instant feedback and always know exactly what I want at any time.
This is despite me having had girlfriends who were enthusiastic students. I found that I got better value from investing the time in teaching them how I like blowjobs.
I've found it unsatisfying to teach a girl how I jack off, because of exactly what Squirrel says. She can't adjust to make it "perfect" because she can't sense what I'm sensing.
I helped an ex- do it her own way, which turned out fantastic. She would use her fingertips to pull the foreskin up and down, but slowly, unlike me. Then she'd add something I could never duplicate: Look me in the eyes, smile, and whisper things like, "You're going to cum for me."
BOOM
She'd occasionally have me lie down and sit on my thighs, straddling and pulling on my cock as if it were part of her body.