Young male sex workers (YMSW) in Vietnam have high rates of HIV and STIs, yet have poor access to healthcare due low knowledge, stigma, and economic constraints. In the process of implementing a Sexual Health Promotion intervention to engage YMSW in Ho Chi Minh City in healthcare, we identified a unique sex work venue, known as a "Shared House," in which YMSW provide sex under the direction of a manager who negotiates the terms of the transaction directly with the client. Survey data reveal that compared with YMSW recruited in other locations, those interviewed in Shared Houses reported lower levels of substance use, less contact with the police, and fewer nights spent sleeping in pubic places. However, observational data and informal interviews with YMSW in Shared Houses revealed that the majority were trafficked through third-party brokers who connect youth with Shared House managers for the explicit purpose of sex work. These YMSW had little or no control over their sex work transactions and very low levels of knowledge regarding transmission of HIV and STIs. Further research is needed in these and other venues in which young men are trafficked for sex work.