Bondage means all kinds of sexual games that are played with ropes, cuffs or other types of restraints. Your partner’s freedom of movement is restricted either at the hands or feet, or both. In BDSM play, bondage might be integrated into role-play scenarios.
One variation is to tie restraints or even clips or weights to your partner’s genitals. This is to provide sensations, but often times the appeal is aesthetic, too. BDSM, after all, involves not only enjoying giving and receiving harsh treatment, but also of seeing one’s handiwork as one takes control.
Bondage can also be psychological too. Demanding that your partner doesn’t move their hands or open their eyes can also be a massive turn on. Get creative!
Here re some other links that might interest you:
BDSM Bondage,
Hard BDSM,
Roleplay