A vacuum cleaner saleswoman...

The door opens, and a thin, medium-height redhead wearing a suit and carrying a large suitcase is revealed in the doorway.

She begins talking in a fast voice, her sudden speech causing Karen to stumble a step backwards in surprise.

She reaches into her case and produces a vacuum cleaner, her mouth working like a motor as she begins presenting a sales pitch of some kind in a blindingly fast voice.

Alexis seems unconcerned, and only pauses for a few moments before continuing to pound your ass with her strap-on.

You bite your lip and do everything you can to stay silent, hoping Karen will chase the saleswoman out before she glances to the side and notices you.

Your efforts are fruitless though, as Alexis seems to take great pleasure in hammering away at your backside, her body making a 'slap' of impact each time she thrusts her strap-on all the way inside.

The saleswoman's eyes flicker in your direction, and she does a double-take, mouth hanging open for a moment as she stares in complete astonishment at the sight of you and Alexis.

A gasp escapes your lips once the need for silence is removed, and your cock throbs in time with Alexis' thrusts.

For the first time since the door opened, the redhead actually seems at a loss for words, though you can see her regaining her composure quickly, and she seems about to say something.