Marcus Flex

Marcus Flex is a Sim who resides in Windenburg, which shipped with The Sims 4: Get Together.

He is a member of the Partihaus household, as well as a club of the same name. He is also a part of the Powerhouses.

Trivia
His name "Marcus Flex" has a similar sound to "Muscle Flex," which may be a reference to his muscular body and his active personality.