Imagine tinkering in Tony's lab with him at 2 a.m.
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You and Tony couldn't sleep so you went to his lab to tinker with him. You started working on a suit with him when he decided to play some songs.
"JARVIS, drop my needle." He said and a song started playing.
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You started laughing and Tony held his hand out for you. You refused but Tony grabbed your hand and pulled you towards him.
"Come on, honey, let's dance." You smiled and started dancing with him.