keeping sand boas communally?

[Eight]

Currently I have the 1 Kenyan sand boa male. I haven't probed him but at 2 years of age he's still only around 12 inches which is suggesting male to me.

Anyhow, I'm seriously considering getting a pair of rough scale sand boas in the next few weeks, but I've never kept more than one at a time. Can this species be kept communally? I've read that you can keep a male and female, or two females together, but wouldn't this increase the risk of the female becoming gravid before she is a healthy breeding wait?

I have a little experience with sand boas, but I haven't really considered this before, so I thought asking more experienced people could only be a good thing.

Many thanks

Sam