OMG MY FIRST CONTRIBUTION.
I was watching iCarly OnDemand at my mom's because it was an ep I had never seen before ("iScream") and there's this part where the trio is in a dark closet and Sam's like, "Who's butt is that?!" And Carly, looking afronted goes, "Sam!"
Which inspired this older!Carly-and-Sam pic.
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in 5, 4, 3, 2. . .)