"Um, I've never…" Harry couldn't bring himself to finish that sentence.
"So I gathered," Rias said dryly, "and I don't care. Frankly, you could last a second and still do enough damage to get me out of this mess. So what do you say?"
"Yes," Harry said.
What else could he say other than "pinch me?"
Rias' grin turned positively feral, and she said, "good."
Without another word, she pounced on him, and for the first time in his life, Harry found himself kissing a girl. Her lips pressed against his as her body did the same, and he was blown away by just how good even that simple kiss felt. Acting on pure instinct, he wrapped her arms around her and returned the kiss as best he could, just trying to mimic what she had done back to her. She deepened the kiss, invading his mouth with her long, dexterous tongue, and he brought his own to tangle with it. When her thigh brushed against his almost painfully hard cock, he moaned into her mouth and was startled when he felt her go as stiff as he was.
"What the hell?" Rias asked, reaching down to feel up his cock with her hand.
"Oh fuck!" Harry groaned as he felt someone other than himself touch his cock for the first time. He was so caught up in the foreign but very welcome sensations that it took him a moment to realize that Rias had a mixture of confusion and concern on her face. When he finally noticed, he asked, "what's wrong?"
"Um, is this all your cock?" Rias asked.
"Yeah…" Harry replied, confused by the question.
"No way," Rias muttered, and her hand was quickly enveloped by red light again.
Harry jerked back as his clothes were removed instantly, reappearing behind him, and he almost covered himself on pure instinct. His sudden shock was mirrored by Rias' as she stared in obvious apprehension at his rock-hard cock.
"Wow, that's, um…" Rias stammered. "That's not what I was expecting."
"What's wrong with it?" Harry asked defensively, feeling suddenly self-conscious.
"You...surely you know how big you are, right?" Rias asked, looking up at him in surprise.
"It's not like I've seen any others," Harry said. "Am I really that weird?"
"Well, let's just say…" Rias said, reaching out to place her hand against his cock. Harry moaned as she pressed it against his flat stomach and said, "the average human cock comes up to about here."
He looked down at the line she was holding her hand against, and his eyes widened at just how many inches lay beyond that.
"You're incredibly thick too," Rias sighed, wrapping her hand around his shaft. "My fingers don't even touch."
"I guess I really am a freak," Harry snorted, unsure how to feel.
"It's not a bad thing, really," Rias said. "I'm just worried about getting you to fit, this being my first time and all."
"Is there any way to make that easier?" Harry asked, honestly having no clue.
"Lube would help if we had any," Rias replied. "As it is, I guess we'll just need to focus on foreplay. No one knows that I'm here, and the only person who was in the room when you summoned me will keep her mouth shut for a while, so we shouldn't have to worry about being interrupted."
Pulling back, Rias waved her hand over her body, and Harry stared in slack-jawed shock as her clothes disappeared and joined his own at the foot of his bed. She was perfect; there was no other word. Flawless from head to toe, she had an hourglass figure that even the likes of Fleur Delacour likely couldn't match. Her firm and incredibly perky breasts were large in general, and with her tiny waist, they looked massive. Her wide hips, thick thighs, and long, shapely legs were also gorgeous, and Harry groaned when she stood up and twirled around, giving him a view of her equally amazing arse.
"I'd say you look heavenly, but…" Harry quipped, earning a laugh from the redhead.
"I'm anything but," Rias chuckled, and Harry's eyes widened as two bat-like wings appeared on her back.
"Wow," Harry said, leaning in to get a closer look. "Could I…"
"Just be gentle," Rias said, and then shivered as he ghosted his hands over her black wings. "I must say, I expected you to be more interested in these."
Harry shuddered as she picked up her large breasts in her hands and pressed them together. She took his hands from her wings and placed them there, sighing as he cupped the soft mounds. They were a little heavier than he expected, and he marveled at how simultaneously soft and firm they felt.
"Ahh, just like that," Rias sighed.
Harry saw her small pink nipples grow harder as he continued to knead and massage her breasts and circled one of them with his thumb. When she whimpered, he took that as a good sign and gently pinched the hard nub.
"Fuck!" Rias hissed.
With a grin, Harry moved in and closed his lips around the other nipple, flicking his tongue over it. When he started sucking on the peak, Rias' hands wrapped around the back of his head, her fingers burrowing into his messy black hair as she held him to her chest. He trailed one of his hands down her side until he reached her hip and moved around to cup her arse. Her breathing grew heavy as he switched to her other nipple, sucking gently on it, and she cried out when he accidentally grazed it with his teeth.
"Come here!" Rias ordered, pulling him up.
She kissed him, and he felt confident enough to take the initiative that time, plunging his tongue into her mouth and coaxing her own out to play. As they dueled for dominance, she flipped them over and started grinding her pussy on his cock.
"Oh Merlin!" Harry cried.