Would have been funny, if I didn't fallen asleep!
I must say, this would have been a nice chuckle if it hadn't been strung out over the length of an entire song. Maybe, like, three seconds would have been better. The good news is that there wasn't any horrible attempt at artwork, because judging by the authors thoughtfully rendered penis, there isn't much artistic skill to draw upon. Next time, make the punchline worth the wait.