Yes you can do it, after you choose to go after Bernard or Logan they'll ask you to give them 5 wolfbane, if you don't do it after a few days he will become a werewolf again and you can captures them in the wolf den at night and you need to build the prison in your hunt and upgraded, when you have them both in your dungeon you can have sex with them, the event only starts if you dominate them or submit to them enough times, in the submissive way the event is spiced if you have 2 lizard-men 1 wererat and another werewolf in the dungeon as well and have been submissive to them.
After that if you cure Bernard and Logan the will thanks you but because they remember something is not the same.
For instance if you go after Logan, then give him the 5 wolfbane and then give him the cure, he thanks you and kisses you, but if you do the dungeon event he only thanks you, no kiss no cute tsundere face.
As for Bernard I don't remember what changes. Sorry