Are there any sex scenes with logan in normal top route without currupting him?
As far as I know, there are only 2 sex scenes but one of those is where he'd end up hating you (Black Heart route). The more "canon" one (and only one atm) you can get is from the "Troubles in the Den" event. There's a variant of this as well if you remained a virgin all throughout the game prior to this event.
Though there is also one scene where you can sniff his pits but... is that... considered a sex scene? I thought it was pretty sexual lol but then again there's no penetration or cumming there so I guess not.
do you wanna include non canon stuff or just canon stuff? cause in the case of both canon and non canon I can think of 4 scenes, the 3 already mentioned by Khaylis and Saber, and the Halloween event from forever ago where you screw with all 3 werewolves and Korg.
and another semi weird scene/scenes that could count, you can technically sleep with him when you capture him and he's in the prison if you either didn't choose Logan or never gave him the wolves bane and let him go wild in the forest.
also you can seduce him when he's fighting you as werewolf Logan/red werewolf or whatever the enemy name is lol.