Most people practice bondage with a purpose in mind. Now we can consider some different styles of play that bondages are most know for.
Sexual Bonsdage
Bondage will help to make one partner’s private area more accessible and more vulnerable. The goal would be deeper penetration and more intense orgasm. If you know your partners favorite position to achieve orgasm then restrain him or her in that position. Make sure all the sensitive body parts are accessible for more stimulation. It would be greatly disappointing to waste all the time with the ropes only to find out that you can not get to anything.
How does the body tense and arch during orgasm? The feet and legs usually would be in a certain curl or bend. If you want your sub to achieve orgasms easily, bind their body, especially legs and feet into the posture they assume during orgasm. Vise versa, you can bind your partner in an awkward position or exactly opposite position to their comfort to suppress or prolong the time for them to get there.
Role Play Bondage
Cops and criminal, pet play, pirate and wench could work extremely well with bondage. The bondage of a properly dressed partner would quickly bring the fantasy into a reality. Try to use the right bondage tools to fit the fantasy. For example, futuristic tools might not work well in the pirate wench scene, right?
Predicament Bondage
As the name suggest, being in a predicament means that you are torn between two desires or have to choose between two or more harms. The set up would require careful planning and a bit of trail and error. For example, imagine your sub on all fours with clamps on her nipples connected to the poll in front of her. At the same time labia clamps tied to the polls behind her to pull her gently back. So she has to find the spot with just the right balance as you sensually tease her all the time.