As @quimedcus once posted, we do see his pajamas at one point in the Who Comics. And, of course, we see him in pajamas a couple times in canon--pinstriped. Like his suits. (Way to shake it up, Doc.)

But, I also headcanon that one time, as a joke, Donna got him glow-in-the-dark star boxers. (Merry Christmas, Spaceman.) She figured they'd be so ridiculous, that he'd never wear them, right?

Wrong.

//Donna Noble is my favorite companion, and has a dear spot in my heart. So, believe me when I say that these two Donnas are two of my closest friends, who I can't recommend enough!

donnashoutingattheworld (The first Donna to ever write with me! Tricia's got a great hold on Donna, and she's incredibly friendly! One of my angst-pals. Oh my goodness, the angst we've written? Priceless. never forget the post-Midnight thread But, I digress. All in all, a total sweetie and fantastic writer, who I love to write with!)

alsosparticus (My bro Toby! Bless his soul. I first met him on his now-defunct Rory, and have written with his many other muses. Truth be told, I really wanted him to make a Donna, since we both would gush non-stop about angsty ideas with the two of them. He did, and I'm honestly surprised that he isn't Donna Noble, or RTD! he's actually Sokka Oh my gosh, he's got her down pat too! A fantastic writer too!)

Their two Donnas are different. But! That's what I love about them both. Alternate character interpretations that are both brilliant! The thing they've got in common, though, and have down perfectly (besides her sass) is her vulnerable, kind side. They both know their muse down to a 't'! It's an honor to write with them both!

Send ღ for a LOVE/SEXUALITY headcanon. 

//:'D

And socks me in the gut

And hits me in the back.

//Ahh, thank you so much, Nonny!