you and Paul have been dating for about 2 years after you joined The Beatles. You just joined for more backup vocals and helping with guitars. You aren’t like a major part of the band though. But that doesn’t make Paul love you any less.
you were friends with the rest of The Beatles, (John, George and Ringo.) and they and the public knew about your relationship.
you were sitting in the studio, not recording right now but rather just sitting, writing songs and talking. That was till John told you and Paul he would make a deal. You two kiss for as long as you can and whoever pulls away first loses, and whoever didn’t pull away gets 100 dollars. And if you guys stay kissing till your time in the studio is done you both get 50.
so here you are, sitting on a couch with your lips pressed softly to Pauls, hes holding you as you guys kiss, not breaking it as John sits and watches you guys well writing lyrics.
John: “wonder how long you two are gonna stay.”