**sorry it's been so long everyone! Hope you enjoy part three of this series!**
It had been a few months since I had spent my crazy few days at university staying on my friend Kim's sofa.
Her chubby, slaggy friend Lisa had come to visit and as soon as Kim had fallen asleep Lisa joined me on the sofa for a little extra-marital fun. The next morning while Kim was at her tutorial we had spent another hour or so fucking.
Kim had caught us while I still had my cock up Lisa's arse, and been understandably upset.
Later that even she had confided in me that her upset was caused by jealousy and Kim and I had then had sex.
I was looking forward to returning in a few weeks' time, Kim and I had been texting a lot and she was looking forward to having me in her bed again.
My wife is more distant than ever, I get the feeling she is actively avoiding me. It's possible she's seeing someone else too. If she is, good for her.
I use a different messenger for Kim, one I keep secret, so whenever I get messages on this app I know they are from her. Except for my latest one.
The alert had pinged and I checked my phone;
"hey babe its lisa. kim giv mi ur numbr hope u dunt mind.
am pregnant. i think its urs. thort u shud no."
Fuck.
I was glad I was alone in my study.
When Lisa had told me I could cum inside her I had taken this to mean she was on some form of contraception, not that she wasn't bothered if she got pregnant or not!
Fuck.
Another message came, this time from Kim.
"Hey you, just heard Lisa's news. Wow. What are you gonna do if her baby is yours?"
Kin and I texted into the night, discussing the situation, and I decided I needed to see Lisa in person to discuss our options.
Lisa was due to visit Kim at uni a few days later so I made up some excuse about handing in coursework and drove up to see them.
I pulled up outside Kim's student house and she let me in, giving me a hug as I came in the door.
I kissed her on the cheek and we both smiled seeing each other once again as memories of having sex came back to us.
She looked beautiful, her dark hair in a loose ponytail and a black sloganned t-shirt on with a pair of tight jeans hugging her shapely arse and her full breasts heaving against my chest. She led me upstairs and on her bed sat Lisa, wearing a tiny white strappy vest with her gigantic tits spilling out and a pair of cheap black leggings so stretched you could see her pale skin and the straps of her thong. Her blonde hair fell to her shoulders.
Kim was beautiful, but Lisa made my dick ache like nothing I have ever felt before. Kim was a beauty you would marry and gaze at over a candlelit dinner, but Lisa was the slag you would visit when you needed something regrettable and dirty.
"I'll let you two talk..." Kim said awkwardly before leaving. "I'll go to the library for an hour or two." she said as she closed the door.
I turned to Lisa. I had expected to feel annoyed, but all I could think of was how great a fuck she was.
"So..." I said awkwardly.
"So." Lisa replied, leaning back a little with her palms on the bed, even this action causing her tits to jiggle a little. I was becoming certain they were bigger. She was a 38GG when I fucked her, she definitely looked bigger.
"You're pregnant then?" I asked, stating the obvious.
Lisa nodded, resting a hand on her chubby belly.
"Yeah. It's probably yours, you're the only bloke I fucked without using condoms at that time." she said.
"Why did you say I could cum inside you?" I asked.
Lisa shrugged. "I was really horny, sorry babe. You didn't ask if I was on the pill or anything, you just asked if you could jizz inside me. I thought if I let your spunk leak out of my cunt I wouldn't get pregnant"
God damnit. I wanted to talk about this but all I could think about were her tits falling out of her tiny vest.
I sat beside her and put a reassuring hand on her thigh. She turned to me and bit her lip, noticing how I could not take my eyes off her tits.
"They've got bigger since I got pregnant. I'm a 40HH now." she purred.
Holy. Fuck.
"Are you pissed of that I'm pregnant babe?" she asked.
I shook my head. I put my hand on her belly.
"So you're definely pregnant by me?" I asked. For some reason this was just insanely sexy to me. I had shot my load inside this slutty 18 year old and now she was pregnant.
She leaned down and took a little plastic tube from her purse. She held it so I could see the "pregnant" indicator.
"Yep. You got me pregnant babe, I'm gonna have your baby." she said, shifting closer to me. Her blue eyes burned into mine.
I gently rested my hand on one of her breasts and squeezed gently. Her eyes rolled back and she gasped. "Being pregnant is making me horny all the fucking time." she groaned, gazing at me as she rested her hand on my crotch and squeezed my cock through my jeans.
I slipped my hand inside her shirt and squeezed her bare breast and leaned in to kiss her. She began devouring my mouth and we tore at each other's clothes until we were naked.
I pushed her back on Kim's bed and got on top of her.
