Worshipping alongside me
A Mistress deserves to be adored and worshipped at all times. Her shoes and feet specifically deserve the appropriate attention. Sniffing, kissing, licking; it’s all appropriate we are being put in our place as her Slaves.
Worshipping Mistress and me
You can worship my Mistress and me at the same time and be our Slave.
Apart from being useful as a Slave, you can be made to be useful as an object too. Think of a footstool or a table or decorative furniture, perhaps.