Her dick-in-a-box gift to her twin was more than she wanted and only impregnating someone can get rid of it.

To Twin, Futa-Dick in a Box From Sister: Christmas Incest Sex from Krampus
She found the perfect gift for her twin sister. It’s long and hard and it keeps on giving all night.

Curing Her Futanari-Cock with MPreg: XMas Incest in July from Krampus
The only way to make her cock go away is to have a marathon of sex and then impregnate a volunteer.

This FICTION short is for ENTERTAINMENT PURPOSES ONLY and is intended for MATURE AUDIENCES ONLY (18+). It contains paranormal incest sex, twincest, sisters, mother-daughter, father-daughter, futanari, oral sex, double penetration, anal sex, vaginal sex, dubious consent, drugged, breeding/seeding, preggo sex, spanking, masturbation, gangbang, mind control, unprotected sex, mpreg, and bareback creampie.