Receiving a pivot relation through another pivot relation

Hello,

I was wondering if it is possible to make a relation function to directly retrieve models with two pivots in between. We created the following models/pivots:

Group
functions: users, websites

GroupUser (pivot)
columns: group_id, user_id
functions: group, user

GroupWebsite (pivot)
columns: group_id, website_id
functions: group, website

Website
functions: groups, users(?)

User
functions: groups, websites(?)

Is it possible to get a websites relation directly from the user class or is it only possible to retreive all groups and then the websites from the groups with multiple queries?