The elevator stopped, and the doors opened onto the what would be considered main floor of the Fantastic Four's living quarters. It was the area they let people poke around in during tours: it had the kitchen, the formal dining room, common spaces for people to relax, hang out and enjoy each other's company, and a bedroom or two for guests. The sort of rooms you'd find anyone else's home; in other words, the Fantastic Four were just like everyone else. Really.
Reluctantly, Sue pulled away from the kiss when the elevator doors opened, but remained in control as she backed out of the the elevator, pulling Reed with her. She laughed when her actions caused him to stretch because his elasticity. At some point, Sue knew that was going to stop being amusing, but it hadn't happened yet.