She wants to know if Sophia's ready for to feel you inside her.

Sophia's eyes widen, disbelieving.

"This is a good learning opportunity," Diana says, then smiles at Sophia with a cold, steel resolve.

Diana reaches down and rubs her clit obviously still aroused. Her legs tighten around you, then relax, then tighten up again. She's building up to another orgasm, but you're not sure what she's doing. Her other hand is still holding your cock, but she's not moving it much now. Sophia's hand continues to work furiously beneath her panties.

Sophia's eyes dart around the room, landing on Diana's fast jerking hand. She looks back at you, directly in your eyes, then down at your cock, then back at you. You can almost see the realization dawn on her that if anyone is going to get fucked it's going to be her.

"Sophia," Diana says, as she rubs her own clit, "You look like you're very aroused, am I right?"

Sophia nods, not taking her eyes off of you.

"Do you have an orgasm coming soon?"

"Yes," Sophia says, barely loud enough for everyone to hear, "I'm really close."

"I thought so," Diana says, "would you like to come?"

Sophia nods vigorously, still staring at you, still rubbing herself.

"Would you like to feel what it's like to have Joe's very erect penis inside your vagina?"

Sophia turns bright read, hesitates for a moment, then nods with wide eyes.

"Joe, I think that Sophia would like you to fuck her. Would you do that?"

Puzzled, you nod, not sure how you feel about this turn of events.

"Thank you," Sophia whispers, and she reaches down to remove her panties. You feel Diana's hand release you, and she sits up.

Sophia pulls off her panties, revealing a very pretty, very red pussy. Diana moves Sophia to the desk, have her face away from you. She guides your cock to the threshold of Sophia's pussy.

"Tell Joe when you're ready, and he'll slide inside you slowly."

Sophia nods, breathing deeply. When she finally looks at you, her eyes are wide and she's looking at you pleadingly.

"I'm ready," she whispers.

You push your cock inside her slowly. She's wet, but tight. She seems to have some difficulty breathing for a moment as your cock passes her lips.

"Oh, my god," she gasps, "this feels amazing."

Sophia moans and begins to move her hips along with your thrusts. You put your hands on her hips as you drive into her, her moans mixing with her light whimpers, biting her lip and giggling a little. You see her hand is back on her clit, rubbing herself in time with your thrusts. Her moans are soon turning to cries, her hand getting faster and faster, rubbing harder and harder.

"Are you getting close?" Diana asks.

"Yes!" Sophia gasps, then suddenly stops.

"What's wrong, Sophia?"

"I'm about to come," Sophia cries out in staccato gasps as you thrust in her, "but, I've never come with another person- I feel embarrassed!"

"It's ok to feel embarrassed," Diana says, rubbing Sophia's shoulders, "but this is supposed to be a safe place. You're supposed to be able to try new things and have new experiences."

Sophia looks up at her hopefully, her hands still working furiously on her clit. Diana laughs, then puts her hand on Sophia's hand, slowing it down.

"Don't worry," she says, " The important thing is to let go, go with it. Don't think about it, just feel it. Let Joe push inside you, and don't think about anything else. Just enjoy the sensations, and let the pleasure come when it comes. And if you want to take a break, that's ok too."

Sophia nods, then looks at you and whispers, "I'm ready, please keep going."

You start thrusting again, slowly at first, then harder and faster. Sophia is moaning and gasping, almost crying out with each thrust. She's moving her hips in time with you now, and you can tell she's very close.

"Oh my god!" She cries out, grabbing the desk to brace herself, "I don't know if I can hold it back anymore!"

You feel your balls clenching as well, the pleasure of her tight wet pussy and her firm body beginning to overwhelm you.

"Don't hold back," you grunt.

Sophia screams. You moan, and thrust into her hard, and the sound of her pleasure is too much for you. You feel your balls tightening and your cock pulsing, and you can feel your orgasm building and building, and you feel your cum begin to explode from your cock. She loses it as well, screaming in short gasps, and you feel her body shuddering and spasming as she comes her pussy tightening around you, milking the last drops of pleasure and cum.

The two of you collapse onto the desk, you on top, Sophia on the bottom. You feel Sophia's body shuddering, her pussy still spasming, gripping your cock tightly. You pull out of her and lean on the desk, breathing heavily.

Diana reaches over and strokes Sophia's hair, proudly. After a moment, Diana gently grabs your hand, squeezing it. "You did a great job," she says, "Thank you."