Doin' the Cushions!

Recently I was watching one of those cable sex shows (the one with the grandmotherly-type talking about the benefits of a butt plug and such...) and somebody called in with a masturbation technique. He said to put a baggie between the mattress and box springs, get on your knees and put your (lubed) dick between the mattresses and start humping the baggie. I thought it sounded bizarre, but tried it using the couch cushions, and ya know what? It works! It feels like doing someone doggie-style, and I cum like a rocket!