Lego: Someone that feels really good to hug/hold. It doesn't matter what position you guys are in as long as you're touching, everything feels right with that person. You two fit together perfectly like lego's.
Example: Ryan and Lorie are hugging each other. Lorie says to Ryan; "you feel so good I want to hold you forever". Ryan replies with, "you're just like a lego I can snap onto".