Two months before her due date, I had my vasectomy to protect Meg from any chance of pregnancy after the delivery. Two weeks early, Meg went into labor on the anniversary of Carly’s death, delivering the girls early the next morning, Jessica preceding Amy by 9 minutes.
Testing after their births confirmed that the babies were both free of the damaged CFTR gene. Jess inherited her mother’s blond hair, Amy my brown hair, both with my green eyes.
As the girls grew older, it didn’t take long before a sexless marriage was as much fact as image, as it got harder and harder to avoid any observation by the girls. We couldn’t exactly ask anyone to babysit so we could have a ‘date night’, either.
Although disappointed, Meg agreed to the cessation of our intimacy for the sake of the girls, settling for being a mother first and my sexless semi-wife second. After that decision, we both occasionally dated other people for sexual satisfaction, but never wound up together with anyone for very long. While we were never accused of being a couple, most of my dates felt my relationship with Meg was still an obstacle, as if she were an ex-wife I still lived with. Meg reported pretty much the same reaction from her dates.
It wasn’t until the girls were 10 that they fully understood that, although she gave birth to them, they weren’t Meg’s biological daughters, but her nieces. Thankfully, neither of them used the “You’re not my mom!” line against Meg during their teen years. Meg was always just “Mom” to them. That “Mom” and “Dad” were also brother and sister they just shrugged off.
It did lead to some interesting discussions with teachers and other parents, although they all accepted our explanations in the end. Since we were actually living the way we described by then, it was easier to be believed.
Once our daughters left for the same college last fall, though, Meg climbed into my bed one Saturday morning and had my morning wood stuffed into her pussy before I even woke up. I never once considered objecting, having already thought about making the first move to resume our sexual relationship myself. Neither of us were dating anyone at the time, having broken up with our latest girlfriend and boyfriend over the summer. While we knew we might eventually need to date again for some cover, we hadn’t yet.
We stopped having sex when the girls came home for Thanksgiving and their 19th birthdays and for Winter Break, but spent all the time in between getting caught up for almost two decades of resisting our attractions to each other.
Which brings me back to our daughters walking in on us as I blew a load down my sister’s throat.
~~~~~
“We can explain…” I tried to say. Already, my cock was beginning to respond to the mental images that were forming.
Jess took my hand in hers, then said, “Dad, you can explain after. Unless you’re going to turn us down? Watching you fuck Mom’s face like that has me so hot I’m going to burst.”
I looked towards Meg. Amy already had her sweater off. Meg was pulling up the tshirt beneath it, revealing that Amy wasn’t wearing a bra over her A cup breasts, that looked like Meg’s did at the same age, gumdrop-sized nipple in the middle of a tight areola. Meg winked when she saw me watching and said, “We were planning to tell them about us anyway, right?”