If you want to meet middle class and up Dominicanas, Boca Chica IS NOT THE PLACE! Unless you are able to get in at the Santo Domingo Yacht Club which despite the name it's in Boca Chica. That's probably the only place in all of Boca Chica that a respectable person from certain societal levels would visit and let everyone know they were there. Everywhere else in Boca Chica, minus the vacation homes of some families east of the Hamaca resort, not so much. Even then, when visiting the SDYC, no one really says they were in BC, but specifically mention the SDYC, because BC can lead to unnecessary misunderstandings.
If its middle class / college educated Dominicanas, the best shots are at Juan Dolio and mostly on the weekends/holidays periods. The part of Villas de Mar is probably the best area for this in all of Juan Dolio. Juan Dolio is a name you can drop back in the city and it will not cause the wrong type of shock that Boca Chica creates among certain people.