This week's offering(s) from the AVCX are a bit unusual. We've got two variety puzzles, one today and another coming later in the week. The first is by Patrick Blindauer, and clocks in at an undeniable 5/5 in difficulty. It's called "Bi-Curious," and because Across Lite doesn't support some of its features, it is provided only as a printable PDF here.
An important set of instructions for solving: In the grid for this puzzle, you will enter only two different characters, which represent a certain code. Enumerations (the lengths of the words) are given in parentheses. The final answer at 91-Across provides the key to finding a final bonus message once you're done.