"Please mistress Brittney" you says, your voices muffled by her buttcheeks. "Allow me the privilege to sniff your delightful farts, I beg you."
More giggles from the young ones and Brittney:
" Fine, I'll allow it, since you ask so nicely."
She make a cute, girlish grunt as you feel her anus opening up to let out several short bubbly farts, which you dutifully take in your nose with total obedience and a hint of curiosity. You remember Wendy's sister Victoria and her putrid fart and Brittney's are definitely nothing compared to it, you don't really know how to describe it: it's still the same meaty and eggy smell, but it's far less aggressive than Victoria's, and you have no problem sniffing to the last particle of methane inside her crack. The crowd of little girls is split between silence and giggles as Brittney keeps farting for a minute. The enthralling scent mixed with Brittney's sweet, innocent grunts finishes the job of making you hard.
You hear your sister coming closer:
"I think it's proof enough", she declares, kicking softly your dick to interrupt your trance.
"Well done slave, I will remember that", Brittney says, dislodging you from her butt crack.
Your last look between her legs makes you notice the wetness of her slit, she definitely enjoyed that and you believe you made one step closer to freedom.
While the girls start talking about what you did, you see Tiffany bring a chair near the center of her bedroom, where you performed your slave show: it was a pierced chair, you knew what it was and had a fairly precise idea of how they would use it tonight.
"Ok girls," Tiffany starts to explain. "Tonight is the night we celebrate the birth of our new toilet slave. We still have plenty of time so you'll all get a shot at it today. We have pizzas, milk and soda, so feel free to fill yourself up before feeding him."
The moment you dread finally happened, a chill of terror ran through your spine, killing your erection in the process. You searched the room for any supporting face: even Peggy is now gorging herself on pizzas, unaware of your distress, you look at Brittney with you most pitiful eyes, she's pouting, clearly displeased about how things turned out.
"Wait a sec Tiff' " she says with a seductive smile. "Pissing and shitting on him is definitely the worst and best thing we could do to him. We should make some warm-up exercises with him, so he can physically and mentally prepare for what he will eventually go through. After all, it would be a shame to break him and make him puke everywhere after 2 or 3 girls. Don't you think?"
Your sister ponders the idea for a moment, the room becomes silent, waiting for a verdict: