[F] My big-boobed flatmate has started walking around without a bra…

So, I've been living with my flatmate, Caitlin, for about a year now, and honestly, she's amazing. She's cute, funny, and we get along really well. But there's one thing that's been messing with my head lately – she never wears a bra at home. Like, ever.

At first, I didn't think much of it. But the more I saw her walking around like that, the more I started noticing things I hadn't before. Basically she's got these huge, perfect boobs, and her nipples are always poking through her tank tops or loose shirts. She'll come home, strip down to these tiny shorts and a thin top, and just… lounge around like it's no big deal. Bending, stretching, jumping…

It's driving me wild.

I literally can't stop wondering how soft they'd feel in my hands, how they'd taste in my mouth, and the soft little moans she might make while I'm doing those things. The worst part is, I swear, she knows what she's doing, too. She'll stretch or bend over, and her boobs just bounce, and I catch myself staring before I even realize I'm doing it. I've been trying to play it cool, like it doesn't affect me, but the truth is just the opposite.

I mean, mine are big (E cups), but judging by the look of her–the way they jiggle, the way they bounce–they must be even bigger. G cup maybe? I'm not sure. But I want to find out.

Anyway, about a week ago she was lying on the couch, in her usual braless glory, and I sat across from her, trying to act normal. I'm scrolling through my phone, but I keep glancing at her. It's like my mind has a mind of its own (lol), and I just can't help it but sneak glances. The top she has chosen is almost completely sheer, and her dark nipples are hard, stretching the fabric, each subtle movement she makes sending ripples through them.

I cross and uncross my legs, trying to get the image of sucking them out of my mind.

She notices. Of course she notices. She looks at me with this cheeky little grin, and I'm dying inside. She stretches her body out, the mound of her pussy rising and making it even worse, and then she says, "You've been staring a lot lately. I bet you like this."

I swear, my heart stopped for a second. I laughed it off, pretending it was a joke, but inside I was freaking out. I did like it. Way more than I should. I've never been into girls like that before, but with Caitlin…fuck. It's just different. It's like she knows exactly what's going on in my head, and she gets a kick out of teasing me.

I made some excuse to leave and practically ran to my room. I didn't even have time to grab my vibrator - within seconds I was face down on my bed with my fingers gently rubbing my pussy through my panties. I just kept thinking about that moment; her perfect body stretched out as she lay on her back, her huge tits and erect nipples pointing upwards. Why were her nipples hard? Did she want me to look?

The question remained unanswered because it was only a matter of seconds before I was cumming all over my fingers, soaking my panties through. Reliving it now is kind of having the same effect…

Anyway, the week since then has kinda been torture. But in a good way. Turns out she knows exactly what she's doing. If enough people enjoy this then I'll type up what has been happening since!