I'm sure this pairing has been done before. But, these are the twin sons of Holly Alto and Ethan Bunch of Sunset Valley. I changed their hair and clothes.
It looks as though both inherited the same facial structure, although Trevor looks a lot better. I think the hair color, eyebrow shape, and facial hair work better with it than the lighter hair that Eric got out of the genetic lottery. You can see both parents' influence in them.
Here are some more Sunset Valley pairings from a game I've been playing. For the sake of space, I left out some of the more common pairings that NRaas Story Progression generates children for. Also, at the beginning of this file, I moved the premade homeless townies the game starts with into empty houses so I could see how their genetics worked if they married any of the regular residents. None of these are households I played, so it's all story progression's work.
The only CC on these is a default replacement skin, everything else is EA-made.
I think this pairing has probably had a couple of kids, but I don't get it often, so I shared mine. Emma Hatch and Leighton Sekemoto married and had two children, Kody and Greg.
Kody favors Emma in looks and build, although the hair is what grandma Yumi has if you de-age her from elder.
This is Greg. He looks much more like Leighton. The blond hair must be a random mutation.
Pauline Wan had an on again/off again relationship with Jared Frio for a while that produced two children.
The first was Lourdes.
The second was Tracy. Although you can see Pauline's influence on him, he looks like a kinder version of Jared.
Iqbal Alvi married Ayesha Ansari, and they had a son named Bennie.
Holly Alto married Parker Langerak, and they have two kids, although one is still a baby and can't be put in CAS yet. This is the older one, Jonas Langerak. I'm not sure where the eye color came from, since it doesn't match either parent or any of the grandparents, so it looks like it's a random mutation.
Connor Frio and Tamara Donner married, and had a son named Winston.
Gobias Koffi married Blair Wainwright, and they had a son also. This is Justin Koffi. The graying hair some adults have is always unfortunate to see passed on, especially on Young Adult (as he is here) and younger.
Madison VanWatson and Stiles McGraw got married, and had two children, Jada and Mindi. I don't recall ever seeing this pairing before off the top of my head, at least not in any of my games.
This one is Jada.
This one is Mindi. Both got Madison's eyes, but Mindi has a lot more of Stiles in her than Jada, who seems to be mostly Madison aside from the slender build.
This one is Marlene Steel, daughter of Tori Kimura and Christopher Steel. Most of the time he winds up with Jamie Jolina or Monika Morris in my games, so this was a nice change of pace. She's one of my favorite of this bunch.
The last two had a couple of those homeless sims I mentioned as parents. The first one is Tobin Kennedy, son of Erin Kennedy and Milton Tong.
And last but not least, Madeline Page, the daughter of Zelda Mae and Artie Page. I had no idea Artie had such an unusual hair color until I saw it put in long hair.