Until she says, "GET IN ME!" and just can't take it anymore because she's pouring forth her juices and outta her mind craving the ROCK HARDNESS!!!!

I like to spend as much as possible, usually it ends at the providers' discretion, when they're ready to get everything finished.
If I would be giving head to a GF it could last a long time, or until I got a cramp in my tongue. I especially like it when the person I'm with (GF or AMP girl) gets to where they are arching their back, or thrusting their hips up to meet you, and you see them clenching the sheets (or the back of your head, etc), and the start breathing deep, and then you think "God! I must be doing something right!"
I had a GF where we had a "session" that lasted almost 3 hours, including some "cool down" times before we got to the main event, she liked the bit of teasing and said she'd even the score.
I liked "Tootsie Pops" and on my birthday she told me she got me an "all-day sucker"...little did I know!
Soooo, over a 24 hour period I got a BJ every hour, or more. Near the end I just had "empty orgasms". The feeling was there, but no come at all. My balls were so sore, I could barely sit, lots of warm soaks in the tub. After about 2 weeks I felt normal again. She said "Now you know how I felt, with that long tease."
The big plus with her was she was a "swallower," I always knew I'd get off at least twice, more if I stayed overnight. She'd even use her fingers to pull my semen out of her and lick it off of her fingers. She always said she liked the taste of come. She said that guys needed to eat some celery to change the taste of their semen.
I ate lots of celery!
I was 29 to 31 when this happened.

Wow! Great stories, thanks, Sir!

WOW relaxn, sounds like a great GF. You wouldn't happen to still have her number would you?

Well if it is tasting good I will go as long as they want. Usually does not take long to figure out what they like and then just go with the flow or until tongue is hanging out past the chin

No, I don't have her number, anymore. She lived about an hour away and always said "They say the way to a guys' heart is thru his stomach...Well, THEY'RE wrong! The way to a guys' heart is about 6 inches lower...if you give them a great blow-job, they'll always come back."
Boy was that true! She told me that she'd break up with a guy and they would call back after a couple months, or so, trying to get back together. Sometimes she'd let them come back for "one for the road" sometimes she'd tell them to let their new GF take care of them, said it was their responsibility to teach them how to give head.
I was allowed to get "one for the road" twice. The grovelling was well worth the humiliation!

most women I have known in the past said Eat lots of pineapple. It was even on the internet. never heard of celery. I mean that's rabbit food which maybe you got confused relaxn. HA

The arched back, deep breaths and her clenching the sheets are somewhat common but it's tough to tell unless the juices flow or the beautiful pearl appears just outside of her clam . Another way is when she trys to push you away while her anxiety peaks before an orgasm. A female is known to orgasm harder than a male. I say the best reaction from her is when she gets you in a stranglehold(thighs around your neck) during her climax. A little pain for her pleasure so be ready .

i heard of the male eating pineapple and celery. it is suppose to make sperm sweeter and less salty. But i am not sure about making kitty taste better. I know the chinese diet, with less red meat helps, as does washing that thang!

My monger diet is eat more pink meat .