Boy or girl???

Oh my~~ we are confused. Since we didnt know how to sexed a guinea pig, not yet, hehe, we think that baby Puteh is actually a boy! Cud it be? Rocky never mount her/him anymore, her/his bum is a bit protruding like Sang Chu and Rocky do. But then, never really see Puteh mounts Caramel. Maybe he/she is still a baby??? Maybe will upload the picture his/her genital here and fb to see other guinea pig breeders have to say. Poor Baby Puteh... Can Puteh be like pundan?? Haha. We never know!