Someone once asked me the stupid joke about why dogs lick their nuts. ("Because they can! Ha ha!") I always thought it was dumb. I'd be worried that I'd finish off and like the taste or something. (Okay, seriously, the whole "pissing out of the same hole" seems nasty to me, and I've never figured out why it doesn't bother girls. Not that I've ever posed that question, as it could start a train of thought that leads to the well drying up, so to speak.)
I suppose, based upon approximate measurements, and how far I can stretch my upper torso, I could probably fit the head in. But I'm not going to verify that, so don't ask.
*--For behavior unbecoming anyone, perpetrated in real time over an extended--AH, FUCK IT! MORE MALIBU, BITCHES!!