Breeding Girls can and WILL spray. Some do, some don't.

Locked her up Where?

Spraying, Mess, Smells all go hand in hand with breeding.

Have you got feliway plug ins? may help reduce tension with hormonal girls. Imagine a load of women together, hormones raging, i'm sure some fights would break out!

How long have you had the bengals? have you had them since kittens?