Tower Bridge

The tower bridge is a doggy-style sexual position involving four people. It looks like this:

• The people receiving penetration get into doggy style position, face to face, often on either side of a bed.
• The penetrating people will each go behind one of the receivers and penetrate them in doggy style.
• The two people penetrating can give each other a high five or fist bump over their backs, creating the silhouette of the tower bridge.

During penetration the receiving people can also interact by looking at each other, or kissing.

The term is sometimes also used as, or confused with, the Eiffel Tower position, but that is with a single person being penetrated in the middle.