Marco and Terezi
While Terezi wasn't close to either Star or Marco, she still liked them well enough. Well enough to attend their wriggling day - er - birthday party anyway. She even got them nice, cool presents that she hoped they liked. Once she had placed them with all the other gifts, she headed over to the food table.
She filled her plate with food and of course, she got the red nachos Marco had promised he'd make. She ate them as she walked along, sniffing as she came by people. She then noticed a somewhat familiar scent and there was Marco himself. "Hey," she greeted him with a grin. "Happy birthday!"