All characters in this story are adults.
*****
The race was already well underway, the horses steaming.
The same could be said of the blonde sitting alone in the top row. She was wearing a bright yellow floral dress and cheering on with flushed cheeks.
"Hey Ash," shouted an older woman to her right, waking Ashley from her bliss, "Where's Amy?"
Ashley shook her head, shrugging, then shouted, "She went to the toilet I think."
"Are you OK?" the woman asked, "You look a bit flushed."
"Yeah," Ashley quickly responded, pointing to the horses, "It's just the race, it's great."
The girl tried to shine her most innocent smile. The woman returned the smile and turned around, back towards the main lobby, followed by Ashley's gaze.
Luckily the woman couldn't see the legs of the person kneeling beneath Ashley's dress.
"Mom was looking for you," Ashley said quietly, "She's gone now."
She relaxed back in the seat, but then she noticed motion from beneath.
"Wait, no!" she almost screamed and closed her thighs on the head between them, holding it with her hands. Then she added, more carefully, "I was almost there."
Amy knew the stakes of their bet when she entered it and Ash intended to collect her bounty in full. After a moment's resistance, the blonde felt the head return to her most intimate area.
For Ashley, the rest of the race was wrapped in a wonderful haze of lust and pleasure, as her sister slowly excited her again. Amy instinctively knew just what her sister likes. Using her tongue, lips, chin, even her nose, she gently stimulated Ashley's most sensitive areas. The older sister couldn't help but grind her hips against the girl's face in response.
But Amy was back in her playful mood now, teasing her sister here and there. Licking and sucking, she made the pressure within Ashley rise, almost getting her off. Stopping just at the tipping point, she changed the rhythm at the last moment. Ashley smiled, swimming in a sea of pleasure. She was enjoying the game as much as her giggling sister.
The race was already nearing its end though, so the blonde held her sister's head firmly in place now, letting her know it's time for the grand finale.
Amy obviously understood. She didn't really pick up the pace, rather she slowed down, falling into a steady and deliberate rhythm. But she didn't relent this time. And the closer Ashley got, the gentler her sister's stimulation, peaking at a blinding plateau. Her breasts felt two sizes larger, her hands were shaking and her dripping pussy quivered at every warm breath from her little sister, just looking for the hint of a rhythm to set off the avalanche.
