The Mistress keeps the slave by herself even when smoking to keep her company and to serve as a human ashtray. The slave has to multitask as the Mistress orders him to lick the soles of her boots clean while also making him eat cigarette ash. The slave feels digusted but obediently tries to fulfill both requests. Every time the slave misses some ash falling off the cigarette, the Mistress punishes him mercilessly by stepping in it and having him lick it off the soles of her boots.