It can take a lot of practice but as Raven says with work you can get to the point where you can hold back 2-3 farts at a time.
If you find you are having trouble learning the technique you might try using some devices to help you out.
A diet high in beans to start with so you have lots to work with.
EPC yes you can use a candle but make sure it is not on fire. You can also buy those heavy weights for deep sea fishing. Put a condom over them as they are made out of lead and pop one inside.
Start with light small balls and work your way up to heavy larger ones. This will increase your butt muscles as you have to work harder to make sure the ball doesn't fall out on the floor.
Work your way up until you can handle walking around for 20-30 minutes twice a day with a heavy large ball inside you.
Of course all this practice can sometimes create a problem that you end up having a hard time farting when you want to.
When you finally do let it rip it is a real blower. Much more satisfing then your regular fart.
Your BG will be blown away with your stamina. Now I am not so sure this means she will be comming back wanting more.
If you find you can't master the natural tantric farting even after a couple months of practice. You can go the medical way and try some fiagra.
Watch the dose as to much and you might blow yourself up.
