During the second half of the 2024-25 season, Aouchiche played for Portsmouth on loan, making 12 appearances.

Sunderland's football director, Kristjaan Speakman, explained that Aouchiche expressed his desire to play regularly in January. The loan to Portsmouth helped achieve this goal, and the move to Aberdeen will allow him to continue playing regularly at a progressive club with a European games programme.

Speakman believes this move is a great opportunity for Aouchiche to gain more experience and develop as a player.