Self Bondage and Masturbation

How i've enjoyed being my master's bondage slave at weekends, but now he's been posted to the other side of the world and i'm just a housewife again. i can't bear it! i need to feel the way he made me feel when he tied me up. fortunately, i was paying attention, so i decide to tie myself up, just like he would! once i've completed the complex rope tie, i add nipple clamps and a knotted crotchrope. i put the end of the rope in my mouth before securing my hands behind me. now, the only way i can make myself cum is by pulling on the rope, working it into my crotch. i wonder if it'll work, if i concentrate on thinking of my master?