The drawer

You roll her over to the room before, stopping at a small desk that is occasionally used by the staff.

You sit down on the chair and place the trolley with your sister to your side. You don't even have to bow down as you caress her ass.

She has her head down and doesn't even look at you, even as you unfasten her bra and pull it off. Her breasts feel very soft as you grope and squeeze them- even playing with her nipples.

You pull her panties down, but you cannot take them off with her in a hogtie. Exposing her butt was good enough for you. You look at the desk and pick up a ruler, giving her another spank. You enjoy how her breasts wiggle as she jerks about. You pick up a pen and rub it over her pussy. She tries to move away as you insert it, but you hold her by her tied wrists and push the pen in and out of her until it is slippery.

You hear her squeal even through her tape-gag as you drive the pen into her virgin ass next without warning! It is small and went in deep as you **** it into her tight hole...but then you pull it out.

You are just happy to have proven to her that this hole wasn't safe anymore. You turn back to the desk and open the drawer, curious if you can find any other toys inside.