Went to investigate the noise upstairs.
Though Nikka had little contact with her neighbor she would call the relationship between them a good one, if asked Nikka would even call him a friend. Given the weird things that have been happening all day she was a little concerned about him. Not bothering to change pants again Nikka went back to the hall of the apartment and took the stairs up. The noise coming from the room was in no way becoming less as Nikka got closer to destination it even had gained some sort of rhythm. The rhythm of the sound distracted Nikka for a moment, remembering her of her arousal. Trying to ignore her need Nikka pushed on.
When she reached the door Nikka saw that it has fallen out of its lock. Nikka pushed to door slowly open looking into the small hallway of Her neighbors apartment. Not wanting to intrude onto someone elses property. Nikka called for her neighbor "David, its Nikka are you here?"
The only response Nikka received was the constant heavy thumping sound coming from the living room. Nikka was a bit afraid, what if there was a burglar in the building? On the other hand she could not let her friend down if he was in any sort of trouble. Against better judgment Nikka went tiptoed through the small hallway to the open door of the living room.
Peeking through the door Nikka saw something that shocked her but also secretly turned her on a little. Nikka saw her neighbor humping the cough like a dog. His rhythmic humping intoxicated Nikka her own lust building up. Through the haze in her mind Nikka saw that something was not quite right about the scene in front for her. Besides the obvious weirdness of finding you neighbor trying to mate with the furniture. Something was "wrong" about David's posture.