In SSBU Highschool, Lucas sees the roommates name & number is "Lucas's roommate name & number is Ness & 301" so he's interested but Ness loves Lucas so much so he clings on him, nibbles his ear, kisses & bites his neck and kisses him on his lips

Mario : Wait, I'm with Peach?

Luigi : I'm with Daisy?!

Peach & Daisy : Oh my

Ness : trying to sees the roommate list