An ex, addored the feeling of being full up. Taking a full fist was mentally mind blowing and physically astonishing. She always had orgasm after orgasm doing this.
I'd first gently go down on her, but making sure she didn't climax, then slowly push all my fingers inside her, one after the other, untill they were all inside and my thumb tucked underneath, with my knuckles pressed against her open pussy.
The anticipation at this point was extremely intense for both parties.
I always made sure my hand and her pussy were soaking and covered in lube. We found KY was best and you couldn't have too much of it. It's also handy to have a towel under her bum,because the lube and juices, could go everywhere.
Once she was ready and relaxed, I'd push, in one smooth motion, slightly twitsing as my hand went all the way in was the best way to get past the knuckles and clenching my hand inside during the same movement to make a fist, so the top of my hand was against the top of her pussy.
Once fully in, so her pussy lips were around my wrist, slowly twisting and gently pushing inside her pussy, in small gradual smooth movements would send her into extasy.I could push and twist a little faster once she was really warmed up and ready. Sucking and licking her clit, or gently resting a vibrator on it, was incredible. She was always left totally satisfied, shaking and physically and mentally blown away.
If the sound of this floats your boat, definately try to get past the knuckles and relax, the rewards are fabulous and well worth the effort.
For ladies worried about their little lady parts stretching, it always went back, looked perfect and also seemed to get tighter aswell, so definaltely a very intimate experience, which I can't recommend enough to share with one and other.
Go for it with plenty of lube and patience !
Good luck.x