"Wow, this is awesome!" Jack said as he flew through the hallway on the beetle backs.
The hallway he was in was very long and had 4 doors that led to 4 rooms, his aunt Monika's room, where his mother was sleeping as a guest, his cousin Marissa's room, where his sister Janet was sleeping as a guest, his aunt Daphine's room, where his sister Lucy was sleeping as a guest, and the original guest's room, where he would be staying if he wasn't smaller than an ant right now.
Since he wasn't in the guest's room, he presumed it was empty. So, holding on to the beetle tightly, he directed the bug to one of the giantesses' rooms...