Originally written 3/22/2010 and posted at Paradox, the Sheldon/Penny LiveJournal community, in response to episode 3.18 The Pants Alternative. Basically, yeah, sue me, I'm a red-blooded female.
WARNING: SPOILERS FOR 3.18.
Penny thinks that Sheldon walking out of his bedroom with his hair mussed, eyes shadowed, and tie loosened is sorta what Sheldon would look like walking out of his bedroom after sex.
And then Sheldon leaning against the podium with a smirk, and then taking off his pants without tripping over them is sorta what he would look like when he's about to have sex.
Basically, Penny's trying to figure out why she keeps thinking about Sheldon and his appearance before or after sex.
...Or, you know, during.