On her day off, Nicole tries to stretch out her joint with a yoga pose in the living room while everyone else in the house are away doing their thing. Bending and stretching as much as her body allowed.
[alt as suggested by pledgers] And it seem that that she might stretches a little too hard as her stomach complains in a loud outburst, filling the room with her expulsion. And she might end up going a little too much that her pants is now puffed and inflated up from all the gas she released.