You'll have to get past phase 2 of the 'Investigate bedroom' plot line and wait a couple of days. Check the 'i' icon to see what you should do next on that plot line.I had sex with Megan, but it feels like I am in a loop now because I cannot advance with Lana or the mom. What do I need to do next?
In case that you don't see the 'Investigate bedroom' plot line, you'll have to enter the room while Lana is taking a shower and masturbate with her.