I'm a little older and have had quite a bit of experience in this area. If I feel the woman if going to make me cum too fast I just have her fellate me (blow me) until I do come then we mount immediatley. I usually like her to be on top so she can control the action and the rythym. I use my thumb and fingers to stimulate her clitoris and anus as well as scratch gently along the inner thigh, butt and groin areas and down her spine. Moving down is usually better than scrating upward on her spine, as you will get more chills from her as it moves her chi downward toward her pubic area. Think of your fingers as small alectrical generators for inducing a voltage toward the area you would like a reaction. .
I don't spend too long in any one place but gemntly play all aroung her errogenous zones. Don't forget to nibble on her neck and lower earlobe too. Hopefully simulataneously with the gentle scratching. Don't forget to give some attention to her breasts also. The areola is the most sensitive it seems. Some women prefer the nipple stimulation. watch for a reaction or just ask her what she likes. She may surprise you. Some women even like to rubbed on their pubic bone in front for a while.
Oral sex is always a good starter for most women. Even if they might cleanliness issues with or religious ogjections they will almost certainly resond to a tongue lashing with cunnilinglus. Take 20 minutes at least there. Don't forget to kiss the inner thighs while your licking around they like variety in attention of spots given attention. If she is not clean and even a shot of straight scotch won't get rid of the taste, use the finger techniques. If you see a wart on the labia. Use the finger technigue. If you have a cold sore. Use the finger technique. Remember its the exact same virus in both places just given another label because of its position.
Depending on how fast you are in ejaculating, give her 20 minutes to each of your one minutes needed. Eat till you get sore jaw muscles if need be to get her to squirt on your face. NO 2 day FACE STUBLE!!! Longer whiskers are OK because they bend when against skin. Sometimes long whiskers can be used to tickle areas of the lower body.
Learning to ejaculate twice is the best cure though, But, after you cum only pause for 10-30 seconds no more, but keep going genitally or orally. . Keep trying this and you'll be a constant double hitter in no time with an erection for longer periods of time. If 85 year old Hugh Hefner can do it with three girls in a row, you ought to be able to handle one girl twice.
The problem is when you get older the second hit (exaculate) takes over an hour sometimes and she might get sore or dry out. If that happens just revert to another position or oral stimulation even doing the ole hand jive. (mutually of course) Or LUBE! Think 'Kama Sutra') (You might not want to go for four hours straight though, if you do great)
Vegetguy Tom