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.