Ride in her panties.

"I was hoping you would like to ride in my panties for the rest of the day...?", she asks while trying to hide some of her beet red face. You guess you took a little to long, because the redness in her face seems to have started to travel down her neck a bit, and she starts fidgeting with her skirt.

"O-of course Katie!" You respond finally, and she practically squees in delight.

"Would you like me to put you in there, or would you prefer to get in yourself?", she asks.

You laugh and respond, "I think I'll let myself in!" She giggles sheepishly before turning around and pulling down the back of her panties. She then awkwardly steps back when she realizes she was a bit too far from the edge of the desk.

You smile a little too much and hop into the back of her panties/sexy slide and glide down to the crotch. You see...