I came up with a little game for the slave to get him properly motivated - he'll lick the filthy soles of my boots with his tongue, while my other boot will be on his hand - and when I'm not satisfied with his performance, I'll simply increase the pressure to motivate him! There's all kinds of disgusting dirt on the boot soles, but the loser doesn't have a chance but to lick them clean - otherwise it will get very painful for him :-D After a while, I order him to get on his knees while I get comfy on the sideboard - but in this comfortable position he won't be allowed to stay long - afterwards he'll have to get down on the floor again and our little game continues!