A Birthday Bang

As Tom finished cumming down his little girl's throat, he smirked as she swallowed what was in her mouth and then began licking her lips and cleaning off the cum on her tits. "That's a good girl." he said, patting her on the head like she was an obedient puppy. Ivy smiled at him, proud of her first deepthroat and swallow.

With a smirk, he asked "Now, my pet, do you want your birthday present from your mother and I?" At his question Ivy's smile widened in excitement, while Lily over to a bag by the couch.

"Yes, please, Daddy!" she said in excitement. She watched eagerly as Lily reached into the bag and pulled out-

A Dildo!

Not just any ordinary Dildo.

It was huge, in fact it was the same size and shape as her Daddy's 17 inch Monster Cock.

Actually, looking between the two Ivy realized that it was a perfect duplicate of her Daddy's cock.

With their identical green eyes glowing with lust, Ivy and Lily shared a look as the MILF placed the fake cock against her dripping cunt. Ivy watched as it seemed to fuse to her mother's body and the, right before her eyes, a pair of large, heavy, sperm-filled balls - also identical to her fathers - grew as well.

Kneeling before two of the hottest people she knew, Ivy had a mini-orgasm as she stared hungrily at the two massive cocks before her.

"I see someone is quite eager, my love." Lily noted as she eyed her extremely aroused daughter.

"Indeed." Tom said in response, his cock getting if possible as he thought about what was about to happen. "And it's about to get much better."

Ivy's eyes widened in shock and awe. "Better?" she asked, wondering how this could get any better than this. "How?"

Lily leaned down to look her daughter in the eye, while Tom fingered her cunt from behind. "Because, sweetie, your Daddy and I are going to knock you up!"

Ivy gasped in shock before squealing in joy. "Ooh, Thank you! Thank You!" she cheered in joy. She squealed as her Daddy picked her up with ease, his strong hands on her ass as he pulled her onto his lap as he sat on the couch behind him.

Lily watched with pride as he daughter took her father's huge cock into her slutty, young cunt. She let the girl adjust as she began to bounce before walking up behind her to thrust her cock into her little girl's tight ass.

Ivy moaned loudly as she was double stuffed by both of her parents. "That's it, Baby Girl. Squeeze my cock, just like that." Tom groaned as his daughter did just that.

"You feel so good in my cunt, Daddy!" the teen slut moaned loudly. "And I love how you feel in my ass, Mama!" Her moaning increased as her dad sucked on her nipples while her mother pressed her own tits into her back.

Eventually, her father came, flooding her formerly virgin cunt with his potent baby batter. The sight of her husband cumming in their daughter caused Lily to do also in her ass.

As the hours of the morning passed in a haze of incestual lust and passion, Ivy was fucked and filled repeatedly. Eventually, after her parents came in all of her holes - paying particular attention to filling up her cunt, sometimes at the same time - and her mother had also been appropriately filled with her, the family fun ended with Tom on the couch as his wife and daughter worshiped his cock together.

With their lust satisfied for the moment, Tom spoke "Now, for the less fun reason I came here. As you both know, Severus has accepted the placement of Defense Professor. However I am now in need of a new Potions Professor. I would like to see about coxing Horace Slughorn out of retirement and I'd like you to 'convince' him." he told them both.

Ivy lifted her head from her Daddy's cock reluctantly. "Who's Horace Slughorn?" she asked, before getting back to it.

Now it was Lily who raised her head to answer her. "He was the Potions Professor and Head of Slytherin during both mine and your father's respective school times." she told her before she too returned to her cock sucking.

Seeing that both of his sluts were now occupied, Tom continued "He was also known to host what he called his Slug Club. Officially they were the occasional get together for Slughorn to introduce his favorite students to influential individuals. Unofficially they were basically glorified Orgies where Slughorn would whore out his students."

At this point, Tom groaned as he came, erupting his seed over his wife and daughter. After his girls dutifully cleaned him and each other, the two cuddled up to his side, the cum in their cunts flowing freely.

Tom finished. "According to his journal, Dumbledore found out about the truth of the 'Slug Club' and fired Slughorn or Dumbledore would have him charged for 'relations with underage witches and wizards'." he revealed.

Lily growled slightly as she remembered when Slughorn had 'retired' at the end of her 6th year. She had always enjoyed the Slug Club and was one of many people who was pissed to see the man go.

Ivy, who was dozing slightly on her Daddy's shoulder, summed it up thusly. "So you want us to 'convince' this guy to come out of retirement, most likely in exchange for offering to let him fuck us whenever he wants?" she asked him.

"Exactly." Tom said with a proud smile.

"Mmm-kay." Ivy said as she fell asleep.

what happens next?

option 1: Ivy and Lily 'convince' Slughorn, but not before getting confirmation about their pregnancy. suggestions welcome.

option 2: More of Dumbledore's secrets are revealed. suggestions welcome.

option 3: How do Dumbledore's allies react to all the new changes? suggestions welcome.

option x: something else. suggestions welcome.