Yes, he paints between her thighs next

"Right," Robin said, wiping sweat from his forehead with the back of his hand, leaving a smear of blue paint on his brow. "Bottoms. Okay. We... we need to match the shorts Viki is wearing."

Viki, who was still modeling Sophie’s blue tank top, had grabbed a pair of Sophie’s running shorts from the laundry pile. She changed and pulled them on over her own panties, the fabric stretching tight across her hips. "Reference acquired," she said, doing a little pirouette. "Get to work, Michelangelo. Don't forget the creases in the fabric."

Sophie let out a pitiful groan. "Do I have to stand like this?"

"Yes, spread eagle," Viki commanded, pointing to the floor. "If you cross your legs, you'll smear the paint before it dries. We need full access."

"Full access," Robin repeated weakly, getting on his knees, his eyes dropping to Sophie’s hips. "Okay. Full access."

Sophie shuffled her feet apart, widening her stance until she was doing a clumsy, unflattering split stance. She felt incredibly exposed, the cool air of the living room hitting her inner thighs and groin. "Just... hurry up, please."

Robin dipped a fresh sponge into the neon blue paint. He knelt on one knee in front of her, bringing his face level with her hips. "I'm going to start with the... waistband. Just a line across."

He brought the sponge to her stomach, just below her navel. The cold paint made her flinch, but Robin held her steady with his other hand, gripping her hip firmly. "Easy, don't move."

He dragged the sponge down, over the curve of her pubic bone. To Robin, he was painting a human canvas. To Sophie, it felt like a cold, wet hand sliding over her most sensitive area. He traced the line where the leg holes of the shorts would be, running the sponge down the inside of her thigh, dangerously close to her labia.

"Robin," Sophie gasped, her hands balling into fists at her sides. "That's... that's the crease."

"I know, I have to get the shadow," Robin mumbled, his face scarlet. He was staring directly at her sex, trying to visualize where the blue fabric would lie. He brought the brush in, outlining the edge of the 'shorts'. The tip of the brush grazed the outer lip of her labia.

"Ah!" Sophie jumped, her hips twitching forward.

"Hold still!" Robin snapped, though his voice cracked. He grabbed her thigh to steady her, his fingers sinking into the soft flesh. "I almost got paint where it doesn't belong."

"It's already where it doesn't belong!" Sophie whined.

"Keep going, Robin," Viki encouraged, watching with rapt attention. "You need to do the inner thigh area. It needs to look like the shorts are drooping a bit."

Robin nodded, swallowing hard. He moved the sponge to her inner thigh, right at the crease where her leg met her groin. He pressed the sponge against her skin, rubbing it in a circular motion to blend the paint. Every time he moved the sponge, his knuckles brushed against the sensitive folds of her pussy.

Sophie let out a high-pitched whine. "It... it tickles. And... not in a funny way."

"Just breathe," Robin said, though he was panting himself. He making circles just a little longer than was necessary, mesmerized by her pink lips everytime his knuckles grazed them. He was painfully hard, his jeans constricting uncomfortably. He shifted his weight, trying to adjust himself without being obvious, but a soft giggle from Viki told him he had failed.

"Having a little trouble focusing there, Robin?" Viki teased. "Maybe you should take a break if the... scenery is too distracting."

"I'm fine!" Robin squeaked. He dipped the brush again. "I just need to do the... the crotch area. First coat."

He moved closer, his nose almost touching her mound. He applied a darker shade of blue to simulate the shadow where the legs of the shorts met. This required him to dab the brush directly between her thighs.

"Whoa, whoa!" Sophie cried out as the wet bristles danced over her clit. "Too much! Too sensitive!"

"I have to get the coverage right!" Robin insisted, his hand trembling. He used his thumb to pull her outer labia slightly apart, ostensibly to paint the crease, but the action exposed her slick, pink inner folds completely.

"Oh my god," Sophie moaned, her head falling back. "Robin, don't look!"

"I'm not looking!" Robin lied, his eyes glued to her glistening sex. "I'm painting!"

He dabbed the paint brush over her clit again, the friction sending a jolt of pleasure through Sophie's body. She could feel herself getting wetter, her body reacting traitorously to the relentless stimulation. A trickle of moisture slid down her inner thigh, mixing with the blue paint.

"Uh oh," Viki said, pointing. "Leakage. You're going to ruin the opacity, Soph."

"I can't help it!" Sophie sobbed. "He's... he's touching it!"

"It's just biology," Viki said breezily. "Silly virgins. So sensitive and naive. Here, I'll fix it."

She grabbed a paper towel and stepped between Sophie’s spread legs. Instead of just wiping the moisture away, Viki took her time, running the rough paper towel over Sophie’s entrance. She pressed the cloth against Sophie’s clit, rubbing it dry.

"Viki!" Sophie shrieked, her legs trembling. "That's... that's worse!"

"You have to be thorough," Viki grinned, wiping the fluid away with agonizing slowness. "Once Robin puts the paint on, it can't get wet, or it'll run."

Robin watched, mesmerized, as Viki "cleaned" Sophie. He could see Sophie’s muscles clenching, her hips bucking slightly against Viki's hand. The sight was incredibly arousing, and he had to bite his lip to keep from groaning.

"Okay, okay, she's dry," Robin said quickly, needing an excuse to intervene. He moved Viki’s hand away with his own. "Let me... let me put the final paint layer on now."

He slapped a fresh coat of blue paint directly over Sophie’s mound and outer lips. The paint was strangely cool, acting as an oddly soothing, tingling barrier. Sophie gasped at the sensation, her breath hitching in her throat. He did some more detail work with his fine tip brush, going into each crevice from the front.

"There," Robin said finally, sitting back on his heels to admire his work. "It looks... exactly like shorts. Blue, shiny, tight shorts."

He leaned in close to inspect the inner thigh seam one last time. He brought his finger up to smooth a smudge, his fingertip sliding along the crease of her groin, millimeters from her opening.

"Robin, touch it one more time and I'm going to lose my mind," Sophie warned, her voice shaking with suppressed arousal.

"I'm just quality checking," Robin defended, though he didn't pull his hand away immediately. He traced the line of the paint one last time, feeling the heat radiating from her skin. She gasped. He looked up at her, his eyes dark. "It's... really good paint, Soph. It covers everything."

"It better," Sophie whimpered, looking down at her painted groin. "Because if I walk outside like this and the paint vanishes, I'm going to die."

"It won't vanish," Viki assured her. "It's art. And art is forever." She grinned at Robin, whose crotch was clearly tented in his jeans. "Though, I think our artist here needs a cold shower before we do the backside."

Robin turned bright red and scrambled to his feet, clutching the paintbrush like a weapon. "I'm ready for the back! Just turn around, Soph!"

Sophie slowly rotated, keeping her legs wide. "Robin," she said, flancing over her shoulder, "Please just be gentle."

"You heard the lady," Viki chined in with a grin, "keep your big brush to yourself."