Let her watch first

Probably a demonstration is in order first.

"Pet: bring us your big toy--and don't forget the rules on how you must present it."

You smile wickedly as Trevor blushes bright red, bows and turns away.

Jenny looks completely confused, but her question is answered moments later, as Trevor returns, still completely naked and now on hands and knees. He is holding a large black dildo in his mouth.

"I've taught Trevor a few tricks--mostly to amuse myself, but also because they might be...useful... at some point."

"Pet--give!"

You hold out your hand and Trevor drops the dildo into it.

"Beg!"

Trevor sits back, his bare bottom resting on his heels. He opens his mouth expectantly.

"Please, miss, may I?

You hold out the dildo level with his mouth.

He immediately begins to enthusiastically lick and suck at it, driving it nearly completely down his throat. After a few moment of his performance, it and his chin are covered in drool from his repeated swallowing of it.

Jenny is watching, silent and entranced.

After a few more moments, you raise the dildo out of his reach.

"Sit."

He kneels back on his heels, eyes down.

"Have you been a good boy today?" you ask.

"Oh yes, miss."

"And what should your reward be?"

"Please fuck me, miss. I need it so badly."

"Well, since you ask so nicely. You may assume the position."

You have an armless sofa well adapted to this purpose, and he arranges himself face down and ass up to prepare for you. Of course, this activity is normally one you would use a strap-on for, but you prefer not to expose yourself quite so much in front of your friend.

"Would you care to do the honors?" you ask Jenny, with a warm smile.

She shakes her hand with a very nervous jerk.

You begin. Trevor has been trained to be very verbal when you are taking him, and soon the room is filled with cries.

"Oh yes, yes...thank you miss...i am such a slut...that feels so good inside me..."

You are so caught up with Trevor that you haven't looked at Jenny for several minutes. When you do, you are shocked to see her face flushed, her eyes unfocused, and her hand very obviously down the waistband of her pants. A pleasantly naughty thought strikes you.

"Pet: sit."

Trevor, who had been close to coming, moans slightly, but knows better than to object.

"Jenny, my dear--do you want the same treatment?"

"Uh, oh, yes, please!"

"In my house, you have to be naked if you want to be fucked."

Without another word, Jenny begins to remove her clothes. She does not do it sensuously or slowly but as if she cannot wait to be rid of them.

"Eyes down, pet!"

Trevor stops trying to catch a glimpse of the other naked person in the room.

You decide to start with Jenny's pussy, ordering her to lie on her back and spread her legs as widely as possible. You can't believe how wet and eager your friend is.

Her orgasm comes much faster than you expect, and she lies back, spent. You almost tell her to go clear herself up when another evil thought occurs to you.

"Pet: assume the position!"

Confused, Trevor climbs back up so that his body is above Jenny's. You continue to fuck him until he cannot resist and comes all over Jenny's naked form. You watch them using their fingers to feed each other Trevor's cum.

You sit back and imagine your new life with two dedicated sex slaves at your beck and call.