Today was the day. I was finally 18 and ready for the world to stop treating me like a kid, however that's exactly who I would always be to my parents. I always had one of them looking over my shoulder, unless I was with other family, like my younger brother or my cousins. The only person who ever treated me like I wasn't ten (and a girl) was my aunt Laura. She was only 12 or 13 when I was born and I remember thinking she was my cousin because she looked younger than Mom or my other aunts, and she was a lot shorter than most of us. While my brother and I took after our Dad's thin but tall build, aunt Laura was the opposite of Mom's slender and delicate shape. She was less than five foot by a few inches, noticeably overweight but in the right places, especially the rear. And she was the cool aunt. And so, at 18, I called her and asked if I could come stay with her for the summer, in the city.

Of course she said yes and I packed a haphazard bag and Ubered myself to her apartment more than an hour away. Things were very, very laid back, maybe even a bit too much. I had to tidy up the place before I could really relax, and she thanked me for it, but I could tell she didn't really care if the place was dirty. Well, the first Friday came and she went out, but she didn't come back until Sunday, and she looked rough. Her dark hair hung limp and her clothes looked stained and slept in. I tried to reason with her that overdoing it like that was not good, but she snapped at me and quite trutfully pointed out "You know nothing about life kiddo, fuck off."

That evening she came into the guest room with an apologetic look on her face. She had showered and changed into pajamas and brought in a bowl of popcorn and two sodas witb her. "Sorry, I get mean when I'm hungover, truce?" And we popped on a movie, munched together and before long she was snoring into my shoulder. I laid her down on one side of the bed and stretched out on the other, scrolling on my phone and then closing my eyes. What I woke up to would have been horrifying if it hadn't felt so good.

The age old question is, if you wake up to a blowjob, do you see who it is first, or let them finish? I didn't have time to pose that question to myself as I ejaculated almost immediately into a hungry, quite skilled mouth. And then I heard her gulp, exhale, and sigh before lying back down to snore softly. My mind ran a mile a minute, "Holy shit, holy shit, holy shit my aunt sucked me off what the fuck what the fuck…" I fell off the side of my bed and struggled to my feet, my cock still dangling out of the hole in my pajamas. The force brought her out of her reverie and she looked at me, and then she tasted the semen on her own breath. Eyes wide she jolted up ran from the room.

I stayed in my room that day and was relieved when she left, seemingly in a rush. She didn't return until that night and I heard the rustle of shopping bags. I peered out and saw her short, bottom heavy shape buzzing about the living room. She was cleaning! That was a first. I opened the door and greeted her as casually as I could, but her face lit up with a lustrous smile. "I just thought I would clean up a little for my favorite nephew! Oh, and none of my bras fit right this morning and my thongs are biting my butt so I made a trip to the lingerie store."

She pulled out a black lacy number and showed it to me, "It's a 34DDD, I went up almost two cup sizes can you believe it?" I shook my head wanting to address the elephant in the room, "But, about last night aunt Laura, I feel like I messed up or…" She stopped me with a finger, "Nonsense, you were fine, forget about it okay?" The rest of the day went on normally, and it was nice that she was cleaning instead of lying around hitting her bong every hour. I said good night to her and went to bed with a smile.

At three in the morning I woke with a start and immediately had that feeling that I wasn't alone. I sat up, defensive, primed to run if necessary, but then I calmed down. Just a dream, maybe something I ate, or maybe I went to bed…."Hungry." The word sounded gravelly, and as I flipped on the light, there was Laura, in her new black bra and thong, kneeling on the foot of my bed. "I'm hungry, can I have some more? It helps me. Helps my boobies and my butt. Please? Just a little more sir?" I should have recoiled, but the heft of her breasts dangling in her new bra and the singular look of a woman that wants a cock or balls in her mouth gave me pause. I pulled down my shorts and watched her expertly nuzzle, lick, suck, and sniff my scrotum and she mumbled into it's pink sack "Yeah, that's what I need. In there. Gotta get it out."

Thanks for reading everyone! What I'm aiming for is my cum, my addicting cum, gives my aunt bigger and bigger boobs and ass, and at the same time, making her more and more submissive until she is in thrall to my cock and balls. Other kinks include titfuck, hotdogging, deepthroat, excessive cum, anal, pregnancy risk, spanking, breast expansion, butt expansion, mild cumflation and D/s. Please respond with a continuation of the prompt preceded by any kinks you would like to include. I already have a pic reference for Laura, available upon request. Limits are age, pee and poo, and beasts. DMs only please, I can't receive chats on mobile.