Teen mothers and their mothers experience conflict due to poor relational boundaries. This conflict can result in maternal stress, which can affect the quality of mother-infant interactions. The purpose of this pilot study was to test the feasibility and effectiveness of an intervention to improve relational boundaries between teen mothers and their mothers. Seven first-time teen mothers living with their mothers or mother figures completed the cognitive-behavioral intervention. Participants evaluated each session and the accompanying homework. Relational boundaries were observed before and after the intervention. Results revealed many feasibility issues including scheduling, language, and sample recruitment. Findings are discussed, and recommendations for further research are offered.