"Sorry, Sweety, I forgot to give you the talk", Lily says apologetically.
"No need, Mom, I am aware of it", Harry replies. But Lily shakes her head in denial.
She then says, "Harry, most of the things you are aware of are based on the Muggle world. Trust me, there are many differences between the Muggle and wizarding worlds when it comes to sex education, common sense, and customs."
"Firstly, there are a few witches who are special, like your sister and me. As for what makes us special, let me show you." Saying that, Lily removes her towel and stands in front of him.
He stared at her face at first, then moved down slowly towards her neck, boobs, and waist, and finally it stopped at her panties, as he noticed something for the first time in his 12 years of existence. There is a thick bulge in the panties.
"What is that?" He asks shakily.
Lily then removes her bra first and her panties next, revealing a 7-inch flaccid cock with a pair of egg-sized balls.
"W-w-what is that!?" He stuttered, clearly too stunned to speak properly.
She gave him that same look again, as if he were the biggest idiot she had ever spoken to, but she still found him adorable.
"It's a penis, Harry. I did not realize your education was so lacking."
"I knew that!" He exclaimed.
"... then why did you ask?"
Harry gaped, trying to understand how she could be so calm.
"I mean, why do you have one??"
"... Because I was born with one?" She was giving him that look again, smiling softly, but Harry still got the impression she didn't think he was very bright. Seeing that he wasn't asking any more questions, she continued.
Harry's eyes were bulging as he stared at the large cock the woman was showing. It wasn't even hard, but it is as large as his own when erect. The sack behind the impressive shaft made his own testicles look like marbles.
"Wow." He muttered, before shaking his awe off, looking up into her bright emerald-green eyes. "I thought girls were different?" He asked.
Lily smiled, immensely pleased by his reaction.
"Not all girls, Harry." She reached down to grab her shaft. "You see, Women are of two types, the first type is females, who are born with pussy only. But some girls were given a special gift; they were born with pussy and a dick, which makes them fantastic at pleasing boys."
Harry's eyes widened as the fat shaft in front of him kept expanding, slowly standing up from her crotch. The bulbous tip glistened with a hint of precum, almost begging for someone to touch it.
She slowly pumped her cock to get it erect faster. After becoming fully erect, it stood at an impressive 12 inches in length and 5 inches in girth. She then says, while pointing at her cock, "You see, this goes into a boy's bum and really rubs against their magic spot, feeling a lot better than just fingers or anything else does."
Harry flushed, staring at the impressive-looking cock and unconsciously clenching his ass, wondering what that must feel like. The awe with which he was staring at her fat cock was affecting Lily, making her cock even more stiffer under his eyes.
"Harry, usually between a male and female, the male is the dominant one in sex. But, when it comes to us, we decide it by comparing the size of our dicks; the one with the bigger dick takes the dominant role in sex." Saying that Lily places her dick against his dick.
There isn't a comparison between them. She was 12 inches while he was 7 inches. Her size is nearly twice that of his own.
"Oh dear," Lily murmured, "All this talking has made me rather excited. Can you be a dear and help me with this, Harry? It will teach you how to please girls at the same time."
"Since my dick is bigger for now, until your dick surpasses mine, I will take the dominant role." She said while swinging her cock in front of him.
"Starting from today, I am going to train you on how to please a woman. I will keep training you once a week until you get skilled enough." Lily says to him.
"Ok, Mom. I will do my best." Harry replies to her with clear anticipation.