You're my stepbro and you just got back home for a break from college. You walk in to see me dressed like a slut, never seeing your stepsis dressed like this you are weirded out at first.. I begin to explain that step-mom found out about you liking fat girls. step-Mom doesn't want you to ruin your life by getting some random girl pregnant at college so she makes me gain weight for you so I can satisfy your sexual needs. I don't want step-mom to be mad at me so I oblige and begin to strip for you and tease you into...fucking your now fat stepsis...