"Ahhhhhh!"
Bosky snuggled into Oxnard, the hot bath water soaking in up to the cubs' chestfur while they relaxed in the hot tub. The two had really taken a liking to the spa, where they could relax in the water, together, and play with their pony friends as well.
Rarity, wrapped in a towel, watched Spike climb in after them.
"Now, Spike, do be a dear and watch these two while I go take care of some lady business."
"Right!" The dragon gave a quick salute as he agreed to look after the boys.
"Where ya goin', Rarity?" Oxnard asked.
"Well, you know...To the little fillies' room!"
"What're ya gonna do there?"
"I'm going to...I'm going to..." Rarity blushed. A lady would never be too direct in explaining such things, but she felt the cubs' inquiries would continue until she had stated her intentions precisely. And her full bladder was insisting that she excuse herself as quickly as she could. "I'm going to go...pee!"
"Ohhhhh!" Bosky and Oxnard exclaimed in unison. They now understood (and it was now Spike's turn to blush).
Rarity turned and made her way to the toilets with all the dignity she could manage.
"Teehee!" said Bosky, relaxing and sinking a little lower in the bath. "I don't go anywhere for that!"
"Heeheehee!" He and Oxnard laughed.
"Uh, what d'you mean by that?" Spike eyed the water suspiciously. Did it have just a slightly yellower tint than before?
He didn't get much time to consider this before Bosky raised a new question.
"Hey Spike! Where d'you pee out of?"
"Er, uh...Well, the same place you do, I would think."
"But I don't see your..."
Spike looked below, where the boys' thingies were swaying in the water. "Well, mine is inside most of the time."
"Oh! Most of the time? Does it come out sometimes?" Oxnard asked, his curiosity piqued as well.
"Well, sometimes..But I really shouldn't even be..."
Fortunately for Spike, this line of questioning came to a halt when Bosky spied a new distraction. Spike's toes were curling nervously at the bottom of the tub. "Heehee! Are dragon's ticklish?"
"No, we're definitely n-..."
But Bosky had already reached out and brought his finger near Spike's undersoles. The dragon pulled back instinctively, but the probing fox paw was too quick. At the lightest of touches, Spike gave a guffaw and started to wriggle around. "Hey that...Wait!"
"Eeeeep! Dragon's are super ticklish!" Bosky beamed at the discovery and pulled Spike's feet closer, getting them near his lap. He continued to gently prod them all over. This made Spike laugh even more, and harder.
"Let me try!" Oxnard joined in and took Spike's other foot.
"Hee...heeheeheehahahahahHAHAHAHAHAH!" The dragon was powerless before the double assault. He leaned back in the tub, laughing uproariously, water beginning to spill over the sides of the tub onto the floor below, his toes spreading and curling uncontrollably as the cubs traced all over his sensitive footpaws, and found that every single part sent him into gales of laughter.
Had Bosky and Oxnard continued their questions about Spike's body parts, they might have pried out of him some interesting facts. His parts did indeed show under certain specific circumstances, such as he got super extra comfortable in warm water, or when he had certain specific thoughts about Rarity, or...Spike's feet were just an especially sensitive part of his body, and it made him feel especially good when they were rubbed, or petted, or squeezed, or even when they were tickled.
Spike, already seized with uncontrollable laughter and squirming, suddenly felt a new involuntary movement, this time in his nether regions. "Wait! Hahahaha! Wait! Heeheehahaha! Stop! Hahahhahahahahahha!" It wasn't that it didn't feel good...But what if Rarity came in and saw Spike, held by his feetpaws, the water from the hot tub all over the floor, his dragonhood exposed for everyone to see...
There was nothing he could do to stop it. His penis began to grow and swell and show between his legs, subtle at first, then a definite protrusion. The cubs' tickles were more than enough to coax it out all the way, and eventually it was poking full size into the water. Spike was still very young (though growing!) - it was not very big. But there was no way to mistake it for anything else.
"Hey Spike!" The hamster stopped his tickling for the moment, and the fox followed suit. "I think I see your weenie!"
Spike was left panting in the water, leaning far enough back that his erection was now pointing up and out of the water. He turned a deep red. "Uh, yeah...I guess you do..."
"Heehee, it's okay! I guess ya do like gettin' tickled! I do too!" Bosky blushed. "Can we...can we keep doing it?"
Spike looked down and saw his proud little boyhood sticking up. He peered toward the little fillies' room, where Rarity was presumably still going about her business. "Well...I guess you can...But uh..." He winked and nodded toward where Rarity was. "Let's just keep this between you and me, okay?"
Flexing his big toes one more time, he lifted each of his feet and offered them to the cubs...
TO BE CONTINUED