"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.
With a final sigh of "I love you." the blonde let herself go.
Just as the horses crossed the finish line, Ashley crossed hers. She instinctively pressed her sister's mouth hard against her pussy as she froze in place. Her young lover stayed with her sister and naturally synchronized her actions with the powerful contractions in Ashley's nether area, keeping the girl in her sexual heaven.
As the orgasm gradually subsided and her breath slowly returned to normal, she opened her eyes to see the young girl crawling back up to the seat to her left, wiping her glistening mouth and chin.
"Jeez, look at you," Amy shook her head, looking at the flushed older sister. Ashley only managed a weak smile, content to bask in her post-orgasmic glow.
"One look at your cheeks and our parents will be on to us," she said, releasing the short ponytail and shaking her head to loosen her blonde hair, just a bit longer than Ashley's.
Ashley let her head fall on Amy's right shoulder, closing her eyes, "They'd never guess that. They'd just think I'm sick or something."
