A computer controlled dildo

You pick up a moderately sized, purple dildo with a long cord attached to it, all packed up almost like a gift, as well as a small bottle of lube. You figure out quickly it attaches to an USB port of a computer. Hurrying back into your own room, you plug it in and it quickly installs some sort of software. Too horny to think about possible consequences, you run the program.

"Welcome to Mistress Mathilda's **** training program, my new **** slut!" sounds a female voice as you see a tall and powerfully muscular, blonde woman on the screen, presumably Mistress Mathilda herself. She's probably in her mid thirties and has a rather big bulge in the front of tiny, tight red shorts. An equally tight, grey tank top shows off her huge boobs nicely too.

"To begin your training, lubricate the dildo and fully insert it into your ass. Don't touch your cock, ****. You haven't earned that privilege yet," says Mistress Mathilda from your computer screen.

You're definitely too horny to do anything except obey her orders. Once the purple dildo is well lubed, you position the head against your asshole and start pushing it in. It's the perfect size for a beginner's dildo, big enough to really feel but not big enough to hurt. You find yourself moaning out loud, which the software seems to recognise, responding with, "Such a good slut."

Once the dildo is fully inside you, its slightly curved head perfectly placed against your prostate, it starts vibrating, getting another loud moan out of you. Your hand moves reflexively towards your cock, but then you remember Mistress Mathilda's words and restrain yourself.

The vibrating, pulsating dildo teases you for what feels like ages, making your cock leak plenty precum onto your stomach. It's just a little bit too small and the vibrations just a bit too weak to make you reach orgasm with it alone. Luckily then you hear Mistress Mathilda's voice again. "You may jerk off now, ****. When you cum, aim at your mouth and keep it open. Swallow everything," she says.

It doesn't take long for you to shoot a huge load onto your own face, some of it ending up in your mouth as well. Despite the taste, you obey and swallow it all. "Good job, ****," says Mistress, "You have passed the first test. Since I have the time for an extra appointment today, you have the unique opportunity to continue your training right away. Will you be my ****?"