Written by Emily Nagoski, Ph.D.
It's one that I always think everyone knows and then I'm surprised when it turns out people don't. Quite simple, but it can make all the difference:
When you're dealing with a penis, squeeze up, relax down.
Squeeze up.
Relax down.
Whether using a hand or a vagina or a mouth or a mechanical device...
Squeeze up.
Relax down.
(Not so much with anal sex, you mostly just want to let the anal sphincter relax during penetration.)
Squeeze up.
Relax down.
With manual sex, a wrist-twist is a very fine thing to add, especially swirling over the head, where the bulk of the nerve endings are clustered.
With the vaginal muscles, you relax as he (or you) thrusts in, and squeeze as he (or you) pulls out.
With oral sex, you suck on the up, and relax a bit on down. This is particularly useful because it can save wear and tear on your jaw, so you last longer. (Really you should save the sucking for the very very end, and use your hand on the shaft throughout the blowjob.)
Squeeze up.
Relax down.
It can make all the difference.
The reason it works is straightforward mechanics. The shaft doesn't end at the pubic bone; it extends deep into his abdomen, like this.
Squeezing up tugs the whole shaft, which feels nice. Squeezing down would sorta jam all that extra, interior shaft down into his body, which, ya know, doesn't feel as nice.
Squeeze up.
Relax down.
Makes a penis happy. And when the penis in your life is happy, doesn't the sun shine just a little brighter?