Why go to Laos when u can just pay $1700 baht or us $50 n apply for TM7 at any immigrationn office in thailand to get a 30 days extension after u hve used up your 90 days stay
They will ask you your purpose of yoyr visit n how long u be staying.thats what they ask me 3 months ago with my Australian passport.do not mention the massage parlors n freelancers n the bar fines