Harry, Ron and Hermione board the Hogwarts Express to head home for the Summer while they were sitting there just talking, Katie Bell knocked on their compartment door.
"Harry, can we walk together for a while?" Katie asked.
"Really, is it important?" Harry asked.
"yes, very important and you may like what i have to say." Katie said.
"Okay, what's on your mind?" Harry asked as they started walking down the train cars.
"well Harry, we've only known each other for a year. but i need to show you something." Katie said getting closer to him to where they're face to face.
"Katie, what do you need to show me?" Harry asked confused.
Katie leaned in and kissed him long and hard. while they're still kissing, she unzipped his pants and pulled them down along with his boxers. Harry did the same to her skirt and knickers. Harry looked down to see her pussy was wet from snogging.
"Here Harry, that's where your cock goes when you make love to a girl." Katie said.
"it feels soft Katie, is it always soft like that?" Harry asked.
"Yes, this is Sex Ed 101. now, what i'm going to do is drop between your legs and show you something else." Katie said as she got down to her knees and took his throbbing shaft in her hand.
"now this is called masturbation, it feels good after a few strokes." Katie said pumping his cock before licking it.
"so you want to educate me about sex?" Harry asked.
" not really, actually i thought we could talk about relationships. so maybe I'd help you find a girlfriend." Katie said.
"so, wait, are you asking me to be your Boyfriend?" Harry asked.
"Yeah, i want us to try and get to know eachother a little better. hence my way of pulling off your trousers and boxers." Katie said.
"are you in love with me?" Harry asked to which she nodded.
"i want us to be together, i want you to make love to me. and since we were born we've had a betrothal contract between our parents." Katie whispered into his ear.
"a what?" Harry asked.
"a Betrothal contract, we've been engaged to be married when we turn seventeen." Katie said.
"hmm, so do you want my finger inside your pussy?" Harry asked.
"mmm, i'd prefer your penis. but lets take it slow." Katie said.
"Katie, how come you're telling me this now?" Harry asked.
"well, i thought you knew. but Neville told me that you didn't know about our relationship or that he's your Godbrother." Katie said.
"Dumbledore said that i didn't have any family left, hence the reason why i live with my Aunt and her pig of a husband." Harry said.
"You know what? Let's go talk to Neville about this Bullshit. because you've got a family besides those muggles." Katie said.
"I've got a better idea, Lets snog for a while." Harry suggested.
Katie grabbed his stiffening cock and aimed it toward her pussy while kissing him. Harry moaned at the feeling of Katie's hand on his penis that he placed his finger on her clit.
"How long can you hold out?" Katie asked.
" i don't really know, it's the first time i've had a girl touch my penis." Harry said as she got down to her knees and took his throbbing shaft in her mouth bobbing her head back and forth using her tongue.
"Katie, I'm going to cum!" Harry said as she kept using her tongue on his cock until he ejaculated down her throat. Katie stood up and kissed him long and hard.
"Um question, why did you do that?" Harry asked.
"Do what? Suck your cock?" Katie asked.
"yeah, not that i'm complaining. it felt good but, i've never felt that good before." Harry said kissing her neck.
"Harry, you're coming home with me. because i'm going to teach you everything about sex." Katie said.
as they pulled their clothes back on, the train was slowing down getting close to Kings Cross Station.
"what can you show me?" Harry whispered.
"everything, because those muggles should've talked to you about everything. by the way, Petunia Dursley isn't your aunt." Katie whispered.
"Say that again?" Harry said.
"You've got a cousin in Slytherin, her name's tracy." Katie said.
"Where is she?" Harry asked.
"She's right behind you." a young girl said behind him.
"Tracy, this is Harry. Harry this is Tracy." Katie said.
"Shall we talk?" Harry asked.
"Of course, it would be nice to have a conversation with my older cousin." Tracy said.
"Excuse me, did you say older cousin?" Harry asked.
"oh, you don't know?" Tracy asked.
"know what?" Katie asked.
"He doesn't know about Hermione?" Tracy asked.
"Trace, what are you talking about?" Daphne asked walking with them.
"Hermione Euphemia Potter, that's what your sisters name is." Tracy said.
"But, the only Hermione that i know has the last name Granger." Harry said.
"Harry!" Hermione called out getting his attention.
"Hello Hermione, we're talking to Harry about his family heritage." Daphne said.
"Oh? doesn't he know about his family?" Hermione asked.
"Not completely, he only knows what Professor Dumbledore had told him." Katie said.
"I can look it up in Wizarding Family Records. will that help?" Hermione asked.
"Yeah, it would help alot." Harry said.
"i'll check it out tomorrow at the library." Hermione said.
"Thanks Herm, see you in September." Harry said.
"Let's go to my place, we can use the floo." Katie said.
"okay Kitten." Harry said.
"Meow." Katie said.