Ok. I just bought a membership to a gym. Actualy just about to go for the first time in 6 years.
Why did I do this?
Well last Thursday I had a date. Everything started out great, then we wind up in a kneeling doggie on the bed.
Something wasn't lining up quite right. I was too low, so I kneel as tall as I can. Three strokes in, and BAM!!
I get a cramp in my leg. I almost kicked myself in the back of my head. The pain was exquisite.
The date went less than erotic after that.
TheHoundOfCullin can't handle Doggie. That is sad.
I'm sure working out will help with this.
Any advice on nutrition to prevent cramps in the bedroom would be much appreciated.

Sorry to hear that you had a cramp mid session.

Not stretching, poor blood circulation, and dehydration are part of the reasons for muscle cramps.

The only down side is CIU (cum in undies) if there was only a diaper like product, you could shoot your load in.

Drink more water and STRETCH.  

No different than the sedentary person who decides to help his neighbor build a deck and then wonders why he can't move the next day.

Try having her keeping her legs in between yours, then you can bullfrog her... Just be careful of overpenetrating if your well endowed...

I can't do it in bed either. Some of it is build, some of it is age and sometimes the plumbing just doesn't line-up.  Potassium helps with cramps.  Bananas!

You mean something like this...

Cramps can be a result of dehydration. Try drinking more water on a daily basis. More water and less alcohol, less soda, and less sugary juices.

Yeah, it's happened to me on occasion, although not with a provider.  Hydrate, hydrate, hydrate, eat bananas or take potassium supplements.  Even a sports drink can help, although I hear you need to drink that several hours before the activity.

Then again, there's always pickle juice...

That is exactly what the trainer just told me.
Booze is so bad for my muscles, including my weenie! I had no idea how it changes testosterone production.
Proper hydration for happy muscle tissue is critical. I thought I ate well. Nope.
Complex carbs, and the good cholesterol are non existent in my diet.
I never realized the connection.
They gave me a fitness test to help create a workout/ diet plan.
I had to drink every 5 minutes. I am definitely dehydrated.
They told me to literally drink a gallon of water a day.

I think she thought I was going to have a heat attack at first.
If I had a big ego, it would have been bruised.

Ever since I was a baby. I have been running around naked when I shouldn't.
I plan on doing exactly the same thing when I am old as fuck!
For now.. I'll run around naked. Thank you. That is all.

I did a 60 mile ride on my bike and after round 1 I hopped out of bed to piss and both legs went. After calming down the provider massaged both quads but junior was done. I was pissed cause this lady was kind of expensive for me and I ruined our session.

Beer, and pickles were my main form of nourishment.

Awesome there you go! Thats the first thing that came to mind. People dont realize how important water is and that it really benefits so much. drink away!!!!!!

Monkeys know the score.

That and lots of water will help avoid cramps.

Do limbering up exercises before hand as well.

I tried to put my left leg out. For leverage.  
Shut down, ...
Told to put it back.

You fukers call that Bullfrog?
Dirty bastards

Getting a blow job when I suddenly got sharp cramps in both quads - as I had started the build up to a tremendous orgasm, I instead fond myself seizing up in pain, unable to walk comfortably let alone finish the session. Very humbling. I now swear by water and bananas ...

the building climax of both the full on charlie horse and orgasm coincide. It it a virtual race at the belmont. In turn number 1 Charlie takes a slight lead with Big O right on Charlies back. As they round turn number 2 Big O and Charlie are side by side all the way through turn 3. Cuming down the home stretch both are thrusting and pumping, OH NO Big O pulls up as Charlie wins by a head. Fucking Charlie

I do see a girl that cramps up almost every time she cums from DATY, but I love it

I don't believe that the beer helped, and likely hurt.  Stick with water, or maybe sports drinks. Alcohol is dehydrating.

I had to check the urban dictionary for that one:  "sex position - same as doggy style but you smack your girlfriend's ass with a rolled up newspaper while telling her she is a bad girl...."

a very good source of potassium.

I find it really hard to drink that much water. I know I should, but It has no taste and I get no satisfaction from it. I only drink water if there is nothing else to drink and I am thirsty. But I definitely get enough liquids, just the wrong kind. Between coffee, lots and lots of diet colas (sometimes three 44 oz cups a day) juice and milk, and occasinally beer, I get probalby 2 gallons a day. Just not plain H2O.

I lay on my back and let the girl do her thing. I am useless at other positions. (Well I guess I am useless in these postitions too, since she is the one working) I get belly cramps in mish after about a minute. I get leg cramps in doggie. If not cramping, I just get fatigued really fast. But if I can just lay back and enjoy, then I still get to have fun. And I am paying her so why should I work?

But I am a little disappointed there were no..
2 pump chump
3 stroke joke jokes
C'mon guys. I can take it!
I am keeping Puppy Style though!

Same here.

Many tks for a good laugh.

I used to get leg cramps at night, while sleeping.

Years later I discovered, or a sleep study decided I have restless leg syndrome.  Medication seems to have helped my sleep.

My wife used to tell me she knew when I was going to wake up because my legs started moving.

It seems as if leg cramps are also associated with RLS.

Aloe Vera Juice for lubricating joints
MSM Powder for joints
Omega Oils
Coconut Oil, Olive Oil for cooking or dressing
Ginseng for energy
Mint Tea and more green vegetables.
Less Salt. Only use sea salt cooked into your food.

Yoga or Pilates and be sure to stretch before and after your gym work out.