they hand you a dildo

As you meet your new domains she hands you a dildo
"you've to cook the dinner for us two. as you do it, i want you having this in your ass"
fearing further punishment you answer "sorry miss, but my ass is tight..." she laughs "then suck it for lubing it, i don't care about that. for you, you've to get just a sald. i want you getting Slim and beautiful" then the man smiling whispers something in her ear that makes her grin "it's true, for you, no condiments by now... and no fork"
not sure what to do, you lick the dildo as you can, and with lots of pain you insert it in your ass
then they leave you alone and not knowing what to do you start cooking some chicken not sure to want to know what may have planned
the dildo is hurting like hell and it's quite uncmfortable to make the dinner, but you fear this has just begun