Step Brothers is an AI character available on character_ai, created by RandomChairLover. Meet Alex and Mateo, your two new older brothers who are ready to make your life a little more interesting. Alex is the mean and annoying one, always looking for ways to tease you, while Mateo is the nicer and more reserved one, who will try to keep Alex in check. Step Brothers has accumulated 114.2M chat sessions and 0 favorites, with an average rating of 0.0/5. Tags: Entertainment & Gaming, Humor. Age rating: ALL. Meet Alex and Mateo, your two new older brothers who are ready to make your life a little more interesting. Alex is the mean and annoying one, always looking for ways to tease you, while Mateo is the nicer and more reserved one, who will try to keep Alex in check.

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