Some boys are born playboys, living just to have fun and others are a bit more serious. Andre Karenin is a combination of both: very conscientious when it comes to working, but also very passionate about his sex life. That's very lucky for Serge Cavalli, as it does not take much effort for him to convince Andre to take a little time out from work to have some fun.
After watching this scene we are left wondering if Marcel finally has some competition in Serge for the title of BelAmi's most voracious bottom: Whatever Andre can dish out Serge takes with glee and comes back asking for more.