Mashing together ideas from other prompts and fanon about Percival's family: Percy has to go to the familial home for some celebration or other and, dreading the inevitable questions about his love life (which have only gotten worse since someone successfully impersonated him and no one noticed), convinces Tina that she should come along and pretend to be his girlfriend. UST. Awkwardness. Transparent falsehoods. HIJINKS. Sexy times. Go!