What is the main conflict in Sexual Perversity in Chicago and the Duck Variations: Two Plays by David Mamet?

Bernard Litko is a young man who obviously has much less experience than he claims. Litko perceives himself to be a ladies' man with an incredible amount of wisdom. Litko is always preaching to Shapiro about how to handle women. Litko also likes to brag about his sexual prowess. Whatever conflict exists surrounds sex or the lack of it.