Anon asked: Foursome + bedsharing (both non-smutty and smutty scenarios)
Pretty much every scenario I can come up with could stay non-smutty or be turned into smut.
They all having a sleep over as children, playing games in bed and making a fort with pillows? Can become smutty when you remember the whole "playing as animals" thing.
Sharing a bed in Ba Sing Se after they celebrate taking over the city? Could turn into a very different kind of private party.
Sleeping in the same room at Li and Lo's beach house, the four of them could have a heart to heart and sleep all cuddled up… or they could comfort sex… or hate sex.
Sharing a bed after the war, assuring one another that all is forgiven? Could be wholesome, could lead to make up sex, could lead to wholesome make up sex.
Nothing is too pure that it cannot be turned into smut.