It's been over six months since we first learned that Scott Disick and Sofia Richie are dating, but we still just can't wrap our heads around it.

Maybe we just can't get over the idea that Scott and Kourtney Kardashian are really over for good.

But probably it has more to do with the troubling age difference.

Scott is 34, and Sofia is 19.

Now, a 15-year age gap isn't always such a thorny issue.

But when one of you wasn't yet legal at the time the other was welcoming his third child, well ... it's a little icky.

But it's legal, and Sofia's a consenting adult, and hey, spending a lot of time with someone who's not yet drinking age might be a wonderful thing for Scott's liver.

All that said, a grown-ass father of three posting pics like this of a teenage girl will always be a smidge creepy.

As you can see, that's Sofia in a bikini.

The photo isn't as unsettling as the video Scott posted in which Sofia dances in her underwear to a song recorded by her father, Lionel Richie, but it's still a little weird.

There have certainly been more random celebrity couples over the years, but we just assumed Scott and Sofia would indulge in a fling for a few weeks and be done with it.

Reminders like these that Scott and Sofia are in a legit relationship always freak us out a little.

Interestingly, Sofia is exactly half Kourtney's age, which should make for some interesting conversations if these two are still together come Thanksgiving.

Yes, Scott and Kourtney are officially dunz-o, but they still have three kids together, which means each of them still has a vested interest in whom the other one dates.

But if Kourtney has a problem with Scott dating Sofia, she's certainly not showing it.

She might just be happy that the father of her kids has brought his months-long globetrotting bender to a close.

Sometimes, it takes a child to get a guy to man up.

Of course, it's usually his child, not a teenager he's banging.