Ash said that he never really wanted kids because he would like to have only one person he loves most in the whole world!
YES BUT WHAT IF WHAT IFFFFFF
Yeah, I can see Lyle being a good parent and Ash trying to contain his seething jealousy over the child taking away his time with his beloved. The best outcome would be Ash falling in love with this "new side" of Lyle and scheduling yearly honeymoon trips to go all out in one go until the kid moves out.
There is actually a AU novel where they have a kid but we don't see the post birth
I wanna see them as a happy little family, where are the kiddss TT