This might not be applicable if both or one of the couple are virgins and/or inexperienced. Because then, they don't know the hows and whats. What if they agree to an arrangement only to realise they don't like it after they put it in practise?
It is okay to address this topic before marriage but not necessary. As long as those involved are open minded and adventurous, they can explore and figure out what works for them while they are married.
sxb ‘blue chew’Honestly, there is nothing wrong with that as long as you both know each other for some time and plan on getting married to each other then it's appropriate to bring up the topic. It's very important to because many divorce cases are sex-related so you need to know what kind of person you're dealing. If they don't fill up to your expectation then you can just leave them and find a new partner that can satisfy you.
sxb ‘blue chew’
never ending roller coaster