My guy friend saw my boobs - what do I do?

I was at a gathering with my friends, and most of them are downstairs. I'm basically upstairs with one of my female friends, and she's texting someone downstairs, then we realise my friend Jacob left his bag in the corner of the room. She texts him to come and get it just as I'm getting changed out of my normal clothes into nice dinner clothes, because we're all going out to celebrate his birthday. I took my shirt off and me and the friend were sort of laughing together, then I turned my back on her and faced the door so she didn't see anything. And as I was taking my sports bra off, Jacob walked in to get his back. Like the instant he walked in was the instant my boobs fell out of the bra, and I'm pretty sure he saw them for a good 3 seconds before I could even cover them. My female friend was in hysterics, Jacob just sort of laughed and apologised then walked out.

What do I do to preserve awkwardness here? I've always sort of had an on-off crush on Jacob which adds to the awkwardness
My guy friend saw my boobs - what do I do?
Post Opinion