TWICE‘s Nayeon made a special guest appearance on an episode of Bam House, the popular YouTube series hosted by GOT7‘s BamBam. TWICE’s Nayeon (left) and GOT7’s BamBam (right) While enjoying drinks and snacks, the two reminisced about their trainee days, with BamBam revealing he had a childhood crush on Nayeon. Unbeknownst to him, his feelings…