A Contract with Death

(Several Months Later…)

"I still can't believe that you're pregnant with our foal my pet," Death says to Celestia softly as he rubs her belly gently with a hoof as he kisses the back of her neck. The two of them resting together in his bedroom, his pet now being only about halfway through her pregnancy while a small vibrator against her pussy lips buzzed away lightly.

“I know. I think it was the day when I had that long orgasm when I held it in until you commanded me to cum,” she grins, nuzzling her Master softly while she coos with the vibrator buzzing away.

"I think that is right. How far along you are fits the timeline well," He replies softly and then reaches up with his muzzle and licks the base of her ear softly.

She moans softly, feeling him lick her ear. “Y-You naughty stallion you…”

"Is that anyway to talk to Master?" He asks gently before giving her horn a lick. "Now stay here my pet. I have a feeling that I have something here to attend to.”

“Of course… Master,” she replies slyly with a wink towards him, rubbing her enlarged belly, feeling a soft kick with her hoof.

As he rolls off the bed he walks up to the door and looks back at her with a smile on his lips before he sheds his spell becoming his skeleton self once more before slipping out of his room and walks into his throne room and sees a rolled up scroll resting on the seat.

He unrolls it and begins to read it:

‘I, Twilight Sparkle, Princess of Friendship in Equestria, herby serve Death for the next ten years to ensure continued longevity amongst my friends. I sign this contract on my own free will and will obey every command he gives me.

Signed,
Princess Twilight Sparkle’

"Princess Twilight Sparkle... offering yourself up to me to keep your friends alive? That's very noble of you, but I think you'll do well serving unknowingly along side your old teacher.”

Death chuckles softly to himself, knowing, sooner or later, that she would come around and see things his way. He promptly writes a response to her, indicating the date the contract would begin and sends it off. He then leaves his throne room and trots back to the bedroom, changing forms along the way as he enters the bedroom with his pony disguise seeing Celestia on the bed, eating some fruit.

“That certainly didn’t take long,” she indicates, seeing him back so quickly.

"No it didn't. But now I think that cuddling with you is in order," He replies and crawls back into bed with his pet before pulling her close to him, her back resting against his belly.

“Hmm, I couldn’t agree more…” she grins, using her gentle magic to guide a hoof of his over her belly.

He smiles as her warm magic grips his hoof gently and then he voluntarily rubs her belly. "I still can't believe it. You're carrying my foal…"

“I am… Master. I never imagined becoming a mother before…” she replies before guiding his hoof to a spot and feels a gentle kick.

"Oh! Our foal just kicked!" He replies happily and kisses her ear softly.

“They did! They must like you already!”

"'They?'" He asks as he rolls her over and looks into her eyes. "How are you guessing you are carrying more than one?”

“I know I’m only carrying one, silly!” Celestia replies, booping his nose softly. “I said ‘they’ because I’m not sure if it’s a colt or a filly.”

He smiles and then kisses her lips softly, while still rubbing her belly with a hoof. "I hope our foal is a colt.”

“Why a colt? Just because?”

"Because I've always wanted to have a son.”

“I see. Would you still be happy if it was a filly, still love her as much as you would a colt?”

"Yes I would my pet. Filly or colt I'll be happy, especially since my beloved pet is carrying him/her now.”

“Hmmm, I’m happy to know,” Celestia grins warmly and nuzzles him. “Will you have your pony form on while you are around them, so you don’t scare them?”

"Of course my pet. Unless they come out like how I normally look.”

“Maybe. We’ll see then, hmm?”

"Yes we will my pet," He replies with a smile and then kisses her lips, knowing that soon her old student would be serving him soon enough.