SPOILERS: episode 2.20 "What Is And What Should Never Be"
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'There he is!' In the garage, buffing the big black car his dad left him. Carmen shakes her head but can't help the grin that tugs at her lips. 'Boys and their toys.'
But Carmen has toys too, and fortunately Dean likes to share them.
He stretches across the gleaming metal, aiming for that hard-to-reach spot on the roof, his shirt riding up to expose his sculpted lats...
That decides her. She goes for her closet and the other big, black, shiny thing that Dean likes to ride.
He doesn't even turn around when she reenters their garage, wearing nothing but a very large strap-on. Carmen drags his toolbox over between his feet and stands on it, equalizing their heights. She pushes Dean face-down on the gleaming black hood and tears his jeans down, underwear and all, then presses up behind him, one hand in the middle of his back, pinning him in place.
"Whoa-" he starts with surprise when she pushes him down, then, "Oh. Oh, yeah..." as she tugs at his pants.