My suspension of belief is really really pushed in this
Two middle-aged looking men sneak into a wedding... okay, far-fetched, but it could happen.
Two middle-aged looking men hook up with young girls and the family don't seem to mind, inviting them to stay over and dress in their clothes and sleep in their beds. Sorry, what planet is this movie taking place?
If they were young like these two girls perhaps we could say "oh okay, they let kids be kids." But who lets guys 35+ into their home?