The Right Fit
An SPH Experience by limpshrimp83.
—
Her name is Christine. We’ve been together four years. She’s sharp, funny, brutally honest when she wants to be, and she has this laugh — this laugh — that can make me feel like the funniest person alive or the smallest, depending on the context. Tonight, I’m learning it can do both at once.
The ass play evolved naturally. After that first finger, she started doing it more often — during blowjobs, during handjobs, sometimes when she was riding me and wanted me to cum faster. It worked. Having something pressing against me from the inside while she stroked or sucked me made me finish embarrassingly quick, which, given my track record, is saying something.
I should mention: I’m not big. I know that. I’ve known it since high school. I’m about 4.7 inches hard, uncut, and reasonably thin. Not comically small — not the kind of small that gets gasps or double-takes — but small enough that I’ve never felt confident in a locker room, small enough that every porno I’ve ever watched made me feel like I was playing in a different league. Small enough that when Christine and I first slept together, I could tell from her face that she was adjusting to me quickly and not struggling. Not stretching. Just… accommodating.
She never said anything about it directly. Not for years. But the way she’d sometimes shift her hips during sex, grinding against me in a way that pressed her clit against my pubic bone rather than relying on penetration alone — I knew what that meant. She was making up for what I couldn’t provide—finding workarounds.
I was good with my mouth, though. I’d always been good with my mouth. And for a while, that felt like enough.
—
The pegging conversation happened on a Sunday. We were in bed, still naked from the morning, and she was tracing lines on my chest with her fingernail — that absent, lazy touch she does when she’s thinking.
“You liked it,” she said. Not a question.
“The finger?”
“Mmhm.”
“Yeah. I liked it.”
“You want more?”
I swallowed. “Maybe.”
She smiled. “I think you do.”
I didn’t argue. She was right. The few times she’d used two fingers, I’d been a mess — moaning, pushing back against her hand, cumming so hard I’d seen stars. There was something about being on the receiving end, about giving up that control, that hit a part of my brain I didn’t fully understand.
“Let’s get something,” she said. “A small one. Something for beginners.”
“Okay.”
“And maybe a harness. So I don’t have to hold it.”
“Okay.”
She kissed my chest. “Good boy.”
That phrase — good boy — sent a shiver through me that I tried to hide. I don’t think I succeeded.
—
She spent the next few days browsing. I’d see her on her phone, scrolling through pages, tilting the screen away when I walked by. She was being discreet about it, which I appreciated, but also which made me nervous. What was she looking at? What was she choosing?
I didn’t ask. I told myself it was because I trusted her judgment, but really, it was because I was afraid of what the answer would be. Afraid she’d show me something massive and expect me to be enthusiastic. Afraid she’d show me something tiny, and I’d have to confront what “tiny” meant relative to me.
On Thursday evening, she called me over.
“Babe, do you like this one?”
I walked into the bedroom. She was sitting cross-legged on the bed with her laptop open, and I sat down next to her and looked at the screen. It was a sex toy site — clean layout, purple accents, the kind of place that tries to make buying a dildo feel like buying a candle from Etsy. The product page showed a slim, realistic dildo on a harness. Beginner-friendly. Modest.
But my eye went straight to the dimensions.
“I know I said I didn’t want a huge one,” I said slowly, “but why would I want one this small?”
She stared at me.
Then she laughed.
Not a polite laugh. Not a chuckle. A full, heavy, bend-forward-and-grab-the-bedsheet laugh. The kind of laugh that comes from somewhere deep in the chest and doesn’t stop for air. She pressed her hand over her mouth, but it didn’t help — the sound just came out muffled and even more hysterical.
“What’s so funny?” I asked.
She was shaking her head, tears forming at the corners of her eyes, and she pointed at the screen. Her finger was trembling.
“Look at this,” she managed, still laughing so hard she could barely get the words out. “Look. Just — look.”
I looked.
The text on the screen, in clean sans-serif font, read: Insertable length: 4 inches. Diameter: 1.1 inches.
Four inches.
I stared at it. My brain did the math before I could stop it. I’m 4.7 inches hard. This dildo — the one I’d just called small — was only slightly shorter than my actual erection. And thinner. Significantly thinner.
And I’d just called it small. Out loud. In front of her.
She watched my face as the realization hit. I felt the heat crawl up my neck, across my cheeks, up to my ears. My mouth opened, but nothing came out. I looked at the screen again. 4 inches. Slightly shorter than me. And my instinct had been to dismiss it as too small. As something beneath my interest. As something I’d be settling for.
Christine was watching me process this, and her laughter — which had been fading — kicked back up again, harder than before. She actually fell sideways on the bed, curling up, holding her stomach.
“Oh my God,” she wheezed. “Oh my God, your face.”
“I didn’t —”
“You called it small.” She was gasping between words. “You — you looked at a 4-inch dildo and said why I would want one this small. Babe. Babe.”
I sat there, frozen, my face burning, my cock twitching in my underwear. Because that was the thing I couldn’t escape — the humiliation was making me hard. The fact that she was laughing at me, at the gap between my perception and reality, at the accidental self-own of calling a dildo roughly my own size “too small” — it was devastating and arousing in equal measure, and I couldn’t separate one from the other.
She sat up, wiping her eyes, still grinning. She looked at me, then at the screen, then at me again.
“You know what’s funny?” she said, her voice still breathy from laughing. “You said you didn’t want a huge one. You said you wanted to start small. You looked at something roughly your size and called it small. So what does that make you?”
I didn’t answer. My throat was tight.
She reached over and patted my thigh. “It’s okay. We’ll get a bigger one.”
“We will?”
“Yeah. If that one’s too small for you —” she snorted, another laugh breaking through — “then we need to go up.”
She turned back to the laptop, still smiling, and started scrolling. I watched her, numb and hard and humiliated, as she browsed through larger options. She’d pause on one, read the dimensions aloud, and glance at me with this look — this knowing, amused, indulgent look — before moving on.
“How about this one?” she asked. “Six inches. 1.5-inch diameter.”
“That’s… bigger.”
“It is.” She tilted her head. “Is that too big for you? For your ass, I mean. Not for your ego.”
I closed my eyes. “Christine.”
“What? I’m just clarifying. You said the 4-inch one was too small. So we’re going up. Unless you want to rethink that?”
I opened my eyes. She was looking at me with this expression — half teasing, half genuinely asking — and I realized she was giving me an out. A chance to say, actually, the 4-inch one is fine—a chance to back down and admit that 4 inches was plenty for what we needed.
But that would mean admitting something else. That 4 inches — roughly my size — was adequate for something. Just not for the thing I wanted it for. And the thing I wanted it for was going inside me, not inside her, which made the comparison even worse.
“Let’s do the six-inch one,” I said quietly.
She smiled. “Good boy.”
There it was again. That phrase. That shiver.
She added it to the cart, and I watched her click through checkout, my stomach in knots, my cock straining against my briefs. My mind replaying her laughter on a loop — the way it had built and built until she couldn’t breathe, the way she’d pointed at the screen with shaking fingers, the way she’d asked me what does that make you?
—
The package arrived three days later.
She opened it while I was at work and texted me a photo. Just the dildo, laid out on the bed, next to a ruler. Six inches. Thick. Realistic. The text said, “It’s here.” Can’t wait to see you take it.
I stared at that text for a long time.
When I got home, it was sitting on the nightstand. She was in the living room, watching something, and she looked up when I walked in.
“Go look at it,” she said.
I went to the bedroom. I picked it up. It was heavier than I expected, denser than my cock even when I’m fully hard. I wrapped my hand around it — my fingers barely met. I held it against myself, over my pants, and looked down.
It dwarfed me. Not by an absurd amount — not the way a 9-inch toy would — but enough. Enough that the comparison was immediate and unavoidable. Enough that I could hear her laughter echoing in my head as I stood there holding a dildo that was an inch and a half longer than my erection and noticeably thicker.
I heard her footsteps behind me.
“Don’t compare,” she said. I turned around, and she was leaning against the doorframe, arms crossed, smiling.
“I wasn’t —”
“You were holding it against yourself. I saw.”
I set it down. “I was just —”
“It’s okay.” She walked toward me. “It’s bigger than you. That’s fine. It’s supposed to be. It’s going inside you, not competing with you.”
She reached down and cupped me through my pants — one quick squeeze — and I felt myself harden instantly under her palm.
“Although,” she said, squeezing gently, “now that I’m feeling you… the gap is pretty noticeable, isn’t it?”
I didn’t say anything. She squeezed again, then let go.
“Tonight,” she said. “I’m going to put you on your back, and I’m going to use this on you, and you’re going to take every inch. And when you cum — because you will cum, fast — I want you to remember that you’re getting fucked by something bigger than your own cock.”
She patted my chest and walked out.
I stood there, staring at the dildo on the nightstand, my cock hard in my pants, my face burning, and my mind doing the math one more time. Six inches. 1.5-inch diameter. Bigger than me in every dimension. And I’d asked for it. I’d chosen it because the alternative — the 4-inch one, the one that was basically my size — had felt too small even to consider.
She was right. The gap was noticeable.
And tonight, I was going to feel exactly how noticeable.
The End.
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