I always wondered where Daniel got his enormous sexual energy from because it was more than obvious that it wasn't from his father's side, and apparently all that sexual energy is from his mother's side. It's pretty funny that Lana admits that she liked Daniel's foul language, when almost all the time she would send him to shut up or say ''Fucking pervert'' to him. Also, it would be interesting if they used Sofia as a sex counselor, after all, Lana is very prudish, since in chapter 2 she herself is surprised by the dildo and how realistic it is, which hints that she never had one
But nonetheless, we get a glimpse of Lana's mindset, that she thinks it's wrong to complain about her husband.
Which lets us know she has never had any out-of-the-ordinary sexual experiences. That's why her personality changes when she has encounters with Daniel, as he makes her experiment in other ways. This could work as a basis for Sofia to give him ideas of things they can do or where they can do it, giving more scenarios and possibilities. At the same time, Sofia's dialogues are very funny: [Lana, is that you? I hear some weird noises coming from the bushes over there. Is that animal? Or are you... Doing something there?"]. She still can't seem to get used to her best friend fucking her own son, making her questions a little, totes, yet innocent in a way.