Tip for guys (literally) to get girl to orgasm in missionary position:

1. While thrusting (doesn't have to be fast), the penis tip rubs the cervix.
2. At the same time, press the pubic bone (right above the penis) against the clit.
3. You can do a slow circular motion while thrusting and pressing down on the clit. This is like the pressing down and rubbing side to side that a lot of girls in the comments say gets them off.
4. Kissing while doing this is great.
5. And both of you still have both hands free to so as you like.
6. I can tell exactly when she's going to come because I can feel her cervix actually expand and come down to press on my penis.
7. Here's the kicker, the cervix seems to line up exactly with the really sensitive part of the penis right under the pee hole.
8. So as you keep thrusting, you're rubbing her clit and her cervix is rubbing your sensitive area.
9. With practice, I can now time it so we both come together at the same time. IT'S THE BEST!

​