Bonding Question on Introducing Guinea pigs (unique Situation)

[2piggies1]

I have two female guinea pigs, Ellie is around 7 months, and Lacey is around 5 months. They haven't been introduced to each other but live in separate cages( they're big enough) and have floor time everyday and are separated by a living world play pen barrier. They have met a few times( not lasting a minute).

I'm adopting my third pig on Friday and not sure if i should wait to introduce all 3 at once or if i should bond Lacey and Ellie and then add the third pig later on?

Any help is appreciated!!!

 

[bpatters]

All three at once. Introductions are very stressful for pigs. If you set up a pair, they then have to go through yet another introduction when the third one is brought in.

How large are the cages? Three pigs need at least 13 square feet at a minimum, and more is better.

 

[2piggies1]

They're both in 2x3 c and c cages right next to each other. I would not harm my pigs in anyway by giving them a pet store cage.