We also use deprivation in our playtime. Usually when she is tied up, she is also blindfolded. It drives her nuts, because it really allows her no control over anything, even herself. Of course, even being tied up is deprivation in itself, because she can't touch me. Hmmm, that sounds rather arrogant, but you know what I mean!
And orgasm denial is simply the best! Tying her spread eagle on the bed, and teasing her almost to release, but not allowing her to cum, delicious! She twists and writhes so well; she's so beautiful.
Occasionally, I make her stand at the bottom of the bed, with her arms out along the top of the footboard, not tied, faving me on the bed.. And I will arouse myself to orgasm, not allowing her to touch me in any way. She also can't touch herself, of course. It's a real test of her obedience; if she moves her arms in any way, I make her stand in the corner so she can't see me. I leave her there as punishment; there is a set of cuffs there over her head, and she locks herself into them until I release her. The louder I moan and enjoy myself, the more she whimpers to join me.