(originally a custom) You're my little sister and over the last 6 months you've been a slave to me due to losing a workout contest. During those 6 months you've put on quite a bit of weight, but I have put on even more without noticing. You're sick of being told what to do, so you challenge me to another workout competition - but this time the loser is a slave for life. I mock you for your weigh gain and guarantee I will be the winner again. We go head to head attempting jumping jacks, squats, crunches, and even push-ups. Each work out, I fail miserably at against you. I get out of breath barely moving my body, but I still try and remain arrogant throughout the challenge. That is until the very end when I break down begging you to go easier on me than I did on you when you lost. KEYWORDS: roleplay, siblings, sisters, fat fetish, fat humiliation, overweight, heavy breathing, belly hang, belly fetish, tight leggings, heavy boobs, weight gain, obese, working out, sports bra, thick thighs, belly fetish, belly apron, weight humiliation, humor