Warning: Foot fetish ahead.
Arale was sad that Goku had to leave. She tried to convince him to stay with her and the Gatchans for awhile longer, but he was insistent on leaving so he could get more training done. He'd train with Arale for a while now. They're raced, sparred, and worked together hard, and it was time for him to move on and find more training elsewhere in the world.
Arale pouted, but nodded, understanding. "Alright, but maybe just one last race? I need to prove I'm still faster than you." She said, knowing the challenge, especially with the teasing, would be more than enough to entice Goku into staying longer; if only long enough for the race.
It worked like a charm. Goku nodded, "Deal." "Loser has to give the winner of the race a foot rub." Arale added, "My feet have been sore since the last time I beat you~" She said with a smirk, Goku getting into position, "Well they're gonna keep being sore because I'm not losing this time!" He declared.
They both took off towards the mountain, the same place they always raced to. Goku had never won even one of their races. He'd beaten Arale in combat, and managed to keep up with her on what she called a casual run; though he was pretty sure they were breaking the sound barrier when they did.
Arale was ahead of Goku in seconds, and putting no effort into her movement. She jumped, turned, landed facing Goku, and continued to run, going backwards and still moving too fast for Goku to gain any ground. Goku bit the inside of his mouth and picked up the pace, not wanting to lose again.
They rushed up the mountain, following the spirally path up towards the summit. Goku put everything he had into it, and just for an instance, he was actually ahead of the purple haired speedster. It felt great, and she seemed shocked by it, but it didn't last long. Arale overtook him the very next second, reaching the tree stump at the top of the mountain and winning the race.
Goku frowned, and sighed, "Guess you're still too fast for me." Goku admitted, Arale nodding triumphantly, "But the next time we meet, I'll be fast enough to outrun you." He promised, "You'll see." Arale smiled, "I'm sure you will, but you still owe me a foot rub." She said, sitting down and kicking off her shoes and socks. Goku suspected it may have been the first time she'd done so the entire week. Whenever she needed cleaning, she'd just ran full tilt through a pond.
He shrugged, a deal was a deal after all. He lowered onto his knees in front of her and took her left foot in his hand, beginning to rub it and massaging it with his fingers. He wasn't sure he was doing a good job, but Arale seemed to enjoy it at least, sighing happily and even moaning occasionally.
Goku took her other foot and began to massage them both at once, Arale shuddering in enjoyment of this, "Should've been wagering foot rubs the whole time~" She moaned as Goku continued.
Goku chuckled, and kept going. He was surprised, as he thought her going so long without taking her shoes and socks off would leave her feet smelling terrible, but they smelled oddly.. Alluring. Goku couldn't quite describe the smell, but he brought her feet closer to his face as he continued to massage them.
Arale didn't notice it, until he started kissing her feet. She didn't mind really, in fact it felt pretty good, but she wasn't sure why he was doing it. She certainly wasn't sure why he started to lick them gently, going from the heel of her foot all the way up to her toes.
"Why are you doing it like that?" She managed to ask through her moans. Goku shrugged, "It feels good doesn't it? Plus your feet taste good~" He teased, continuing to kiss and lick them, his tongue pushing between her toes before sucking on them one by one. "They do?" Arale asked, Goku nodding as he worshipped her feet.
Arale thought about this for a moment, then asked, "Mind if I see how yours taste to?" Goku removed his own shoes and socks, and laid with Arale so they could both admire and play with each other's feet. Arale was surprised to find that Goku's feet actually smelled incredible, to her at least. And the taste when she began licking them sent a shudder through her body. She blushed deeply after a few minutes of the foot worship when she realized she was getting wet, then eagerly kept going when she found that Goku was to.
He'd already told her about his being a cunt boy, but they hadn't actually done anything together yet. Her whole face turned when Goku had them shift positions again, now sitting facing each other so his foot rubbed against her crotch, and hers rubbed against his.
"W-would this feel better without the pants?" Arale said. She'd meant it as a joke to make him blush, but she ended up going even redder when Goku grinned, removing his pants and underwear and grinding her foot against his wet pussy. Wordless, Arale did the same, and soon the two were moaning happily together as they fucked each other's feet.
Arale came first, both because she wasn't used to sex and hadn't been expecting Goku to push his toes into her pussy. When he did, and she felt them wriggling inside, it was only a matter of moments before she reached her peak. She immediately mimicked the motion, pushing her toes and then part of her foot into Goku's cunt to make him cum, but it still took a few moments of pumping it into his wet hole for him to cum, groaning her name as he did.
He panted for a moment or two, then got up and started to get dressed again, "Feet still feel sore?" he asked, Arale shaking her head. "Good." Goku said, "We'll definitely try more of this when I see you again~" He said before jumping down from the hill and running towards his next adventure, Arale jilling off to the thought of his feet.