Im not telling u to light ur leg on fire ,im jst saying put fire near the areas that were bitten near it , just until you flinch from the heat . Shit man . Next time have a ciggerette befre u go to bed so mosquitos wont come ,or use insect repellant .
Run burning hot water over your legs for about 5-10 minutes.
And just tell everyone you failed and left the window open, and that they are bites. Anything else would make you seem like a diseased freek, while the truth would only make you look stupid.... which leaving the window open was.