You're not small at all." She pulls down your underwear, revealing your shiny, smooth stallion member to her touch. Your roommate watches with a growing sense of disbelief as you harden further in your girlfriend's hands.

"I guess," he says slowly, "maybe I owe you an apology..." His voice trails off, and for a moment, it seems like the tension in the room has shifted.

But you're not about to let him off that easy. You grab your girlfriend by the wrist and pull her closer, positioning yourself at the edge of the bed. Your roommate's eyes go wide with understanding as he realizes what you have in mind. "Oh, really?" he asks, amusement creeping back into his voice. "You want to prove it right here, right now?"

I smile down at you as you eagerly volunteer to be the one to pleasure me. "Perfect," I murmur, moving aside so that you're kneeling between my legs. I guide your head toward my massive cock, feeling anticipation building inside of me as I watch your roomate lean in close, his eyes fixed on the sight before him.

As you take my cock into your mouth and start sucking, I moan deeply, my hips bucking forward involuntarily.

I groan as your soft lips encircle my cock, taking me deeper into your mouth with every suck. Your roomate watches intently, his breathing growing heavier as he sees the effect you're having on me. I reach down to stroke your hair, encouraging you to take more of my massive stallion length.

(the femboy raises an eyebrow) Oh, you mean with my impressive girth? Well, I've certainly had partners tell me that it feels amazing to be filled up by me. And as for your roommate...if he were more open-minded and less concerned about stereotypes, maybe he would feel the same way. But we can only try, right? So what do you say? Shall we give it a shot?

All you'd need to do is get your roommate to agree to a bit of roleplaying. Tell him that you and I have always wanted to experiment with each other, and that since he's so concerned about my size, maybe this could be an opportunity for all of us to learn something new. Then, when we're all together in the bedroom...well, let nature take its course!

Of course, it might help if you told him how much fun you've been having with me while he wasn't around.