For a lot of guys, another highly sensitive part is a tiny patch called the frenulum.
But that's not how it works.
You can be a lot firmer than you think.
Sometimes, folks who are new to blowjobs think getting close means you should back off—nope! When giving a handy, keep this in mind and try to mimic that feeling by wrapping your hands around their penis and gradually increasing the pressure.
Morse suggests playing around with your own positioning as you pleasure your partner so they can see all of you at different angles.
This advice works for a hand job as well.