diff --git a/src/js/sexActsJS.js b/src/js/sexActsJS.js
index c2e72b41f850b834560be2ac2f533d739d1b8ab8..0e236b95861d2f72d81402f469450a567678a81f 100644
--- a/src/js/sexActsJS.js
+++ b/src/js/sexActsJS.js
@@ -519,6 +519,8 @@ window.seX = function seX(slave1, act1, slave2, act2, count = 1) {
 	// Slave 2 does their normal thing.  If "Slave 2" is the public, then increment the public counter for slave 1 instead.
 	if (slave2 === "public") {
 		actX(slave1, "publicUse", count);
+	} else if (typeof slave2 === 'string') {
+		// someday we may track "slaves" and "assistant"
 	} else {
 		actX(slave2, act2, count);
 	}