Don't get me wrong, I love all kogals, but if I have to choose between two kogals, the dark-skinned kogal will 99% win. Unless glasses are involved. Then I can't choose.
On the one hand, it's cute if not fascinating to see a younger female realize that she's seriously underestimated an older male's "mojo". On the other hand, "Mister" might have gotten a dramatic wake-up call regarding what probably goes through the minds of young girls (possibly his daughter also) these days.
No back story is provided so my reasoning is that judging by the Dad's apparent age he had his daughter late in life and is now widowed, Kogal openly expressed attraction to Dad prior and Daughter is cool with the idea of dear old lonely Dad getting to have some fun. Or something like that.