Brownie is the crested girl and Indy is the boy. They're both young. Indy is the shyer of the two. They both enjoy being pet on their foreheads. Unless one of them is spayed or neutered, this warrants a PREGNANCY WATCH (GL link on reproduction).
Indy is showing signs of hair loss, most commonly due to mites, and so I've marked him special needs. He is a gorgeous Himalayan in the making though! Every new guinea pig should go to a Cavy Savvy Vet for a well visit, but Indy will definitely need one. Guinea Lynx provides a list of common mistakes in treatment here. Mites are a very common issue in guinea pig treatment.
More knowledge and GP fun galore are available at GuineaLynx.
* AAGP recommends quarantining any new guinea pigs
for 2-3 weeks and confirming the sex yourself.
Many sad accidents or "accidents" can be avoided this way. *
helpful links: Where to Begin? General Care Guide & Quality Hay and Pellets in bulk & Pampering your Pig & Cheaper, Larger Cages & Bedding & Essential Guinea Supplies & Proper Diet & Cavy Savvy Vets & "What's Normal? What's Not?" & Social Life & Boy or Girl? & "What is Rescuing and Adopting?" & Social Cause Marketing & Guinea Pigs in MD/VA/DC .