Help! Girl or boy?

[babygerb]

Could anyone please put my mind at rest and tell me whether my baby gerbil (8 weeks) is a girl or a boy. The brother is very obviously a boy, but I just can't be sure with this one. I think it's a boy, but I don't want to put it permanently with Dad and it's brother, only to end up with another (inbred) litter. I'ver looked at all the pictures I can find on the different gerbil websites, but still can't be sure. The pictures aren't great, unfortunately, but I don't think he/she particularly likes posing for close ups ! I would really appreciate someone's experienced opinion on this. (by the way, if you think the pics look a bit odd, he/she had had some hair loss due to overgrooming following diarrohea (now dealt with))

[Shooting Star]

Yep, that's definitely a boy.

[babygerb]

Phew! Thank goodness for that! To be honest, the second photo does suggest that he's a boy, but in real life he doesn't look quite so 'swollen', unlike his brother, so that's why I wasn't so sure. I think I just needed some reassurance. Thanks!