You come in the house with your friends and you see me in my underwear you put your vest on me before your friends come I forgot my phone you run after me to give it back but you see me sniffing your vest (I'm looking for a lie to not make the situation more embarrassing)

I have allergy problems! I was blowing my nose! haha, I will wash and sanitize it before I return it to you!

(this lie is even more embarrassing)