Her 18th birthday

Eighteen years ago today, Izzy came into the world. Actually, since it was just past nine o’clock, it was now eighteen years plus about four hours. That in itself was exciting, but it wasn’t her age that had kept her mind racing all night—it was the promise of a certain gift.

It was a particularly special gift; one that each of her older half-sisters and femboy half-brothers had also received when they turned eighteen. Call it something of a birthday tradition in her family. Assuming tradition held, her daddy was going to give her a special present.

She didn’t know exactly what was going to happen, but it was pretty clear that each of her half-siblings had been given their first sexual experience by their mutual father on their eighteenth. Just the thought of it had her rubbing her thighs together and trying to resist slipping a finger down to her bald cunt. The hot water rushing over her didn’t exactly help the situation, and as she started soaping up her petite, thin form, her thoughts wandered again.

Her daddy was hot; really, really hot. Not only was he tall and muscular, but, well… the fact that he had 7 wives, 5 femboy husbands, and at least a dozen girlfriends and boyfriends on the side spoke to what he was packing. Combine it with a thick, pungent, brain-piercing musk and… f-fuck, umm…

Izzy’s fantasies had gotten a bit too involved; before she could even grab at her pretty pink pussy, it was clenching hard. A shudder ran through her, accompanied by an involuntary squeal, then a gush of clear girlcum splattered onto her inner thighs and joined the shower water. Her involuntary orgasm brought her to her knees, hips bucking as sparks exploded in her head. If just the thought of her daddy could do this to her… fuck—this was going to be a hell of a birthday gift.

Her dad arrived a couple hours later, along with a few of Izzy’s half- moms and siblings, come to wish her well. Her father had too many spouses to live with any one of them dedicatedly; instead, they all lived in roughly the same neighbourhood, and he cycled through houses every few days. It was a pretty common set-up for larger families.

They held a barbeque lunch for her; another family tradition for birthdays. Normally it was something she looked forward to—a highlight of her year—but today her thoughts were elsewhere. It was a testament to her state of mind that when she saw corn on the cob on the grill, her thoughts immediately flashed to wondering how its size compared to her daddy’s dick.

Finally the time for presents arrived. She hurried through a small barrage of trinkets, clothes, books, and gift cards before finally her daddy approached her. At 6’6”, he towered over her lithe 5’1” form. Izzy found it hard not to hyperventilate as she looked up at him. Hell, she found it hard not to drool. There were a couple snickers and grins from the assembled family as he approached her; they knew what was coming.

“Happy eighteenth, sweetie.”, her daddy said softly. “Let’s go up to your room for a bit.”

Izzy’s pussy started to tingle, dripping into her panties.

Izzy’s daddy took a seat on her plush twin bed. It only served to exacerbate the size difference between him and her, which made her almost dizzy with excitement. She started to talk, but he cut her off, saying, “For your eighteenth birthday, I want to give you something special. A girl’s first experience with a man should be something she’ll remember. Now, I won’t fuck you; you wouldn’t be able to handle me for your first time. But, ask me for something—anything—and I'll do it.”

The flash of disappointment she felt at hearing she wasn’t going to get her hole stuffed was quickly smothered by the rest of his speech. Shaking with excitement, Izzy stammered, “A-anything??”

“Anything.”