I should ask the mods about Sam making his Snorlax PokeBlock... anyway!
In Sam's version of Ash and Gary growing up, I imagine he and Delia would switch off taking care of the kids so they both could get some work done/some peace and quiet, and when it was Sam's turn he would just do the usual affectionate fatherly stuff (playing with them, taking care of them, teaching them things, etc) and I think they got along before they became rivals if you want to go that far back.
After he's done with "hey that's not what I look like, why is he calling Gary Green and why don't I remember this Red kid" and realizes that it's an alternate universe, he will be slightly jealous that Other Him gets a granddaughter and he doesn't.
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In Sam's version of Ash and Gary growing up, I imagine he and Delia would switch off taking care of the kids so they both could get some work done/some peace and quiet, and when it was Sam's turn he would just do the usual affectionate fatherly stuff (playing with them, taking care of them, teaching them things, etc) and I think they got along before they became rivals if you want to go that far back.
After he's done with "hey that's not what I look like, why is he calling Gary Green and why don't I remember this Red kid" and realizes that it's an alternate universe, he will be slightly jealous that Other Him gets a granddaughter and he doesn't.