Boot Slave Trapped And Used

Ive put the slaves head in the box and also trussed his forearms and feet. Now hes totally trapped and I can use his mouth to clean my boots. Sometimes I stand on the box, sometimes I sit down on the barstool - but of course Im groping my dirty boot feet all over his tongue all the time! So pathetic to see his tongue attempting to reach all the dirty catches sight of on my boots but thats just what a boot slave loser deserves!