Evelyn

"Mother, I think my Philosopher's Stone was almost empty."

"It's no big deal. I'll solve it for you."

A shard of red stone formed in Trisha's hand. Her belly inflated at a fast speed, made her fall on her knee due to the sudden weight.

"Oops, maybe I do it excessively."

You absorbed the stone. Your MP raised to 310/390.

"Mom, you should be more careful. Remember you're carrying decuplets."

"I know. I just aged these babies by three months, but this is out of my expectation. Carrying them to full-term must be a trouble... Don't mind me, continue. Your sister is waiting."

You kneed and aimed your cock to her Evelyn's vagina. She smiled: "Do you mind I call you 'Daddy'? Or do you prefer 'big brother'?"

You smiled too: "That depends on what you want me to put in your belly: your daughter or your sibling?"

Holding her legs up so that her feet were at your ears, you sunk your cock into her. You began to thrust rapidly. Evelyn moaned: "Oh yes, yes, yes... Fuck your little whore harder, Daddy. I'll raise my daughters to be sluts and one day they will serve you as I do now."

"How many babies do you want?"

Evelyn looked at Trisha: "Maybe just two. I don't think I can walk with a huge belly like Mommy."

"Okay, you got your wish."

With a triumphant roar of ecstasy, you unloaded a wave of sperm into her waiting womb. She drowned in pleasure: "Oh yeah, it fell so good!!!"

Even without X-ray vision, you could saw in your mind the scene of countless of your sperm hunting for her defenseless egg, cutting it into two and developing to a twin.