Author: Sarah Hagger-Holt; Welsh Adaptation: Manon Steffan Ros.

Beca and Josh have grown up like twins. Born eight days apart to each of their mums, they also share the same anonymous donor father. But lately they've started feeling more separate from each other - Josh is desperate to find their donor dad and Beca is trying to work out her feelings for Carli, a new American girl at school. Part of the Rhyngom Scheme.

Awdur: Sarah Hagger-Holt; Addasiad Cymraeg: Manon Steffan Ros.

Mae Beca a Josh wedi eu magu fel efelliaid. Ganwyd y ddau i'w mamau wyth niwrnod ar wahân, ac maent yn rhannu'r un tad rhodd dienw. Ond yn ddiweddar maen nhw wedi dechrau teimlo rhyw bellter rhyngddynt - mae Josh ar dân eisiau dod o hyd i'w tad rhodd, tra bod Beca yn ceisio deall ei theimladau tuag at Carli, merch newydd o'r Unol Daleithiau yn yr ysgol. Rhan o gynllun Rhyngom.