Give her a choice

You recall seeing an old, solid drawing desk somewhere in the corner. You leave the marraca in her pussy, while you walk over to the old desk, buried in paper and boxes. You clear it up and pull it forward & you walk back to your elder Sister, pulling the maraca out of her.

You roll her over and remove the cord hogtying her, but you keep her ankles and wrists tied up as you lift her over to the desk. The table top is levelled and you put her in standing position before the higher end, bending her over it.

She is just standing on her feet with her butt raised up, while her upper body hangs down the inclined plane. In this position, she can't struggle as you untie her arms to pull them forward & tie them down to the rack of the desk.

She ends up standing on her feet, tied at the ankles, her butt raised up, her body hanging down the levelled table-top, her arms stretched down to the ground, her wrists tied together, nude except for her glasses and the tape gagging her. Her face is now just in the right position to give a blowjob & her butt and pussy are exposed well, while her breast hang in a position to be grabbed. You stand in front of her, and pull her head up by her hair.

"Listen, big sister, I give you a choice. I can take off your gag if you suck me off. You had better do it good and don't even consider biting me.

If you don't want my cock in your mouth, I will just fuck your un-lubed ass. So nod, if you want to suck me."

You present your standing cock just in front of her taped mouth, waiting for her reaction.