It is inappropriate and harmful to generalize about sexual behavior based on nationality or ethnicity. Such comparisons rely on stereotypes that reduce diverse individuals to reductive, often offensive tropes.
Sexual attitudes and behaviors are shaped by personal values, upbringing, education, religion, and individual personality—not by passport or cultural origin. Salvadoran and Mexican women, like all groups, encompass the full spectrum of human diversity.
Respectful discourse focuses on individuals, not imagined collective traits. If you have questions about cultural norms regarding relationships or gender roles in specific communities, approach them with nuance, context, and without prejudice.