“Ash, I’m sorry. I’ll stop.” I start to pull out.

“No!” Ashley shouts suddenly, scaring the shit out of me. “Please Spence keep going.”

“Are you sure? I don’t want to hurt you.”

Ashley grabs my hand tight and pushes it violently into her. “Keep going I can handle it. Don’t stop unless I tell you to.”

I push into her gently again. The pressure causes her pre-cum to ooze out between the ridges of my knuckles. Two of my knuckles slip past her tight edge. She clenches her teeth and grimaces but doesn’t tell me to stop. I shake my head and push again, twisting slightly for a better fit. With an audible pop my other knuckles enter her, making Ashley yelp painfully. She relaxes slightly as I slowly and easily slide the rest of my hand into her. My fingers automatically curl into a fist. I hold my hand in place for a second to kiss her chest and neck gently. She opens her eyes, they seem hazy with pleasure and relief now, and looks into mine urgingly. I nod and check out my right arm. My hand is missing, swallowed by my girlfriend’s soaking pussy. I begin to twist at the wrist moving my fist against her walls. Her reaction is instantaneous. She groans, long animalistic growling noises, and rocks her hips. As I rotate my wrist a little faster I can feel her muscles grasping onto my wrist and pulling my arm deeper into her. Her muscles hold tighter and tighter until…

“Oh fuck Spencer!” Ashley writhes on her mattress as she cums. Warm liquid runs down my forearm from within her. I continue twisting my wrist, riding out her orgasm till the muscles of her hole relax and my arm and hand begins to appear again. As carefully as I can I remove my knuckles and fingers from Ashley. I expect more signs of pain from her but she’s caught up in her climax coma.
My hand slides out of her, glistening with her cum. I start to lick my fingers and Ashley opens her eyes to watch. To my surprise her eyes are also glistening, but with tears. Shit what’d I do? Damn you Lesbian Sex Guide! I wrap my arms around her and hold my hands to her back.