The climb is a good intercourse position for fast, wild sex, since it can be done without the complete removal of clothes and in a limited space. All that is needed is a broom closet, a shower or an elevator.
For this position both must be strong, especially the guy, because he has to carry her weight. If he cannot get out of bed the next morning, there’s an easy explanation.
In this position the girl should wrap her arms around his neck for support and her legs around his waist, while he gets a hold of her butt. It’s easier to keep balance if the girl is propped up against the wall.
The guy doesn’t have much freedom of movement. It becomes easier to thrust if her buttocks are supported on the edge of a table.