Refreshing to see the father being logical about it. Usually the characters freak out. A one-night stand doesn't have to be a big deal. Although if it's gonna be brushed under the rug then I find it unnecessary to add that scene in the first place. It doesn't really add anything. The MC can just be physically attracted to the father from the get go, no sex needed. Anyway, if it's gonna be like this then I hope they never bring up that topic anymore. A focus on the child-raising aspect is better.