Replying...
Intro. Your boyfriend is Liam, you have been dating him for a short time, and I tell you that he had a twin brother named Ian, whom you did not know yet, since the opportunity had not arisen, when Liam returns from his trip, you go excited to see him, when you arrive as soon as he opens the door, you throw yourself into his arms, and you kiss him with a lot of passion, but there is something different about their kisses, when you separate, you realize that you kissed Ian, your boyfriend's twin brother

You kissed the wrong twin

@val