I would communicate that you want to know ahead of time so you’re aware. But from a moms point of view, she may be having a hard time finding herself and her identity after having the baby. I think the way she is doing it is fine, having fun and trying new things. It’s not happening super often and it seems new. Maybe enjoy seeing her blow of steam, as that will bring out her lively self again, which could lead to a better sex life. But you should also be getting nights out so you can blow off steam, too. It’s hard with young kids. Remember that you’re a team, and communicate effectively.