Sorry for the cellphone pic, but I just had to capture this moment. He moved a slight bit when I opened up the tub for a better look so it might not really look like a good lock.

She was tail wagging earlier and not too long ago. He's been trying to lock up with her this evening, I even saw him wrap his tail around hers but she was slithering around so he didn't get a good grip. I just took this pic not even 5 minutes ago