"Fractured Family Ties"

Prompt: 2.4 minutes siblings david and daisy hate each other, but one night in the middle of one of their heated arguments out of nowhere they end up in bed together, naked and engaged in intercourse, for 2.4 minutes until david unexpectedly ejaculated inside deysi who wasn’t on birth control, give background into the story on how the siblings are with each other and the events leading up to that night, give plenty of dialogue between the two and go very in depth on the sex scene, show their reactions and povs when david ejaculates this also includes the sperms pov and reaction to realizing the egg it just fertilized contains the exact same dna