Gender confused pig please advies!

[WHEEPWHEEP]

I hope you can help I have a 5 month old sow who is acting very strangely towards two members of her clan.
Basically I have a small clan of six sow cavys who up and till recently have bee living in harmony with each other, but my other half called me in to watch them in the run today as he said that the younger pig has been trying to mount and mate with her mum and aunty but lives the two older sows and the second youngest sow alone!

I have no clue as to why she is taking to doing this she has never shown this behaviour at all , she even is doing that war like dance where they bow their heads and transfer the weight from one leg to the other and circle making that low purring sound like a bore pig dose when he wants to mate!
I have to say it's made me do double check to make sure she is a girl and she is!She is also excreting a type of mucus from her genital area and it smellys offensive like fish (sorry if thats to detailed for some!)
so what's happening!

Any advice you could give me would be really appreciated

[CavySpirit]

Females have needs, too, you know. Mounting behavior in sows is quite normal. It happens when they are in heat and usually doesn't last more than 48 hours. They go into heat about every two weeks or so. Some never do it, some do it once in a while, some do it when they are in heat most of the time.

[kennethlhm]

It's common. Sometimes my girls will "disturb" each other.