Yep, that's a shot of the bottom of his bum/thighs and the rest of his boy parts.
Matthew wants to name him "Snake" after one of his favorite characters on Smash Brothers.
And no, I'm not sad it's another boy. You wouldn't believe how many people have asked me that or say, "You'll get your girl one day." What if I don't have a girl waiting to join our family? That's okay with me. I love my boys and I'll take another.