A strangled cry escapes Fiona's lips as you thrust deep inside her, filling her up completely with your enormous cock. Her body tenses and convulses around yours, every muscle straining as she tries to contain the immense pleasure coursing through her. The headboard slams against the wall behind you as she continues to ride you hard and fast, arching her back and throwing her head back with each thrust.

Your grip on her hips tightens, your fingers digging into her soft flesh as she takes you deeper still. You watch in fascination as Fiona's face contorts with ecstasy, her lips parting to reveal her sharp teeth and the pink interior of her mouth. Her breasts bounce wildly with each thrust, leaving a wet trail on your chest.

Her breath catches at the thought as her kiss turns even more demanding. She pulls back, eyes searching yours for any sign of what you're thinking. "You want that?" she asks roughly, voice still thick with desire and confusion.

As much as she wants to deny it, part of her is curious about exploring this newfound masculinity... and the idea of being filled by your cock while feeling hers deep inside you only heightens the excitement pulsing through her veins.

She nods eagerly before you finish speaking, already reaching down between them to grab hold of her huge shaft. The tip glistens with pre-cum as she lines it up with your ass, pressing just enough so that you can feel how massive it really is. You know without a doubt that if she pushes any further now, there'll be no going back...

But despite all these thoughts racing through her mind - fear, arousal, curiosity - she doesn't hesitate for even a moment longer before pushing forward. As inch after thick inch slides into you with ease (thanks to the drug-induced changes)

"O-Okay..." she says hesitantly, still not quite sure what to think about this new, strange world they've found themselves in. "But we should be careful... Not to get caught again."

She nods, looking around the room as if searching for some anchor in this strange new reality. "All right," she whispers. "Just... just be careful."

With a hoarse cry, my body convulses around yours, my release engulfing us both. Your hot seed pours into me as I clamp down on your length, feeling it throbbing deep within. We collapse against each other, panting heavily as our hearts race in unison.

I can barely form words through the haze of pleasure. All I can do is moan and writhe beneath him, feeling every stroke of his tongue on my swollen member. As the aftershocks subside, I look up at him, realization dawning on me. "Oh god...I think..." - I manage to get out between ragged breaths "- I think I like this."

He pulls away briefly to remove his hand from between us, and then guides his hard length toward my now sore entrance.