I know you all enjoyed my story about how I showed my nephew Chris how to fuck both guys and girls. So let me tell you how I came to add his sister Tiffany to my stable of sex partners.
Unlike Chris, Tiffany became sexually active at a very young age. She'd had an abortion at 15 (I know because I paid for it) and had taken a twenty-three year-old man to her senior prom. One look at her and any man with a pulse would push his grandmother over a cliff for a chance to get into her pants.
Her trouble started with an early puberty. At twelve, she wore a 34C bra and now, at 18, she sports 36DD tits with a beautiful ass and tiny waistline to match. She learned early the power she has over guys and isn't afraid nor disinclined to use it.
I was never as close to her as to her brother, but we enjoy each other's company. She had just graduated from high school and wanted to stay with me while attending junior college. Though she had had a troubled time in her teens, she was putting things together and trying to improve her life. I would do anything to help her.
She moved in at the end of August, just after I had fixed up a spare room in my house for her. We spent a day moving her stuff from my sister's house to mine and, after getting everything in I started to make dinner, just a salad and a couple of chicken breasts. After clearing the dishes we changed for a swim, I in a new pair of Speedos and her into a blue one-piece that seemed about two sizes too small from the way it gripped her curves.
We cooled off and then took to the chaise lounges on the deck. She rubbed suntan oil on me, and then lay on her back as I reciprocated. Gently I rubbed the oil over the exposed sections of her back and legs, kneading the flesh like fine bread dough. Her firm young body felt so good!
"That feels so good, Uncle Joe."
"Glad you like it. Do you know what a beautiful young woman you are?"
"Yes." She giggled. "Can I ask you a question?"
"Sure, sweetie."
"Is it true you are fucking my brother and his girlfriend?"
Somehow, this took me by surprise. I looked into her eyes, which reflected her devilish grin.
"Well, Tiff, I am. Does that bother you?"
"No. What bothers me is why you've never tried to fuck me." With that racy comment she turned over and placed her hand on my crotch. "Chris says you've got a huge cock. Can I see it?"
Never one to disappoint a lady, I lifted my hips off the lounge and pulled down my Speedos, exposing my hardening penis and thick bush of pubic hair. Her eyes glued to it immediately.
"He wasn't lying." She took my cock in her hand and gently stroked it, making it grow to its full length. After getting me fully hard, she took me in her mouth and, with practiced expertise, proceeded to blow me. The suction was like a Hoover, and the stroking was as good as any man can do to himself. I started to picture all the boys she had practiced her technique on.
"You like this, Uncle Joe? Do you like getting sucked off by your naughty niece Tiffany?"
"Yes! Suck that cock, girl! Make me fill your mouth with my sperm."
"Sounds yummy!" With that she got back to work and, within two minutes, I was spurting my semen into her waiting mouth. She didn't miss a drop.
I lay back, exhausted, as my niece treated me to an erotic strip show. She pulled the straps of her suit down and lowered it, just enough to catch sight of the tops of her breasts. Slowly she lowered it a little more, and I could see the big pink nipples I had always imagined. She swayed back and forth, making her tits bounce. Then she took the rest of it off. Her pussy was covered in blonde curls, her thighs and stomach white and perfect.