Oh my, it is HOT down here! Or maybe I'm just having a hot flush, either way, please excuse skimpier clothing to normal. Though, it's nothing new. I'm your mother and you've seen EVERYTHING before so do try to keep your blushing under control if you can. Honestly, son, you're blushing so much! Are you ... oh, I see. You've developed a little erection. Not to worry, as I say I've seen everything. I won't look, promise. Though, I could help with that. It would be our little secret. I could help to give you some guidance, after all, mother knows best ...