when i wear my underwear on my hips, like i normally do, in .. (OnlyFans)

when i wear my underwear on my hips, like i normally do, in this position...my underwear look humongous. so my solution was to pull them back (like im giving myself an ultimate wedgie), tuck all the ‘slack’ in the side strap, and cross my fingers and hope this exact thing doesn’t happen... 
good thing i always shoot with ‘live photo’ turned on, otherwise i’d have never gotten this truly inspiring video.
ALSO... WHAT THE FUCK IS UP WITH THAT LOONEY TUNES SOUND EFFECT?! 
honestly, i’ve listened to it 20+ times to try and figure it out... i am truly stumped