# Bondage gear.

With the proper rope-tying skills, all that it'd take to restrain a werewolf would be about 50-100 feet of rope per werewolf restrained, and their moderately-superhuman strength would wind up working against them - the harder they pull on it, the tighter it would get; modern-day kinky rope bondage techniques are derived from the techniques that were used by Japanese policemen to restrain criminals. Then, when the morning comes, they wiggle over to each other and untie each other's knots (this is a process that gets much faster once one of them has freed their arms).

And, of course, depending on their tech level, they might have access to more advanced bondage gear, and that might make things easier for them. Locks, chains, leather belts, etc.