Other Deleted Scenes
I believe this is the conclusion shot to the last previous picture, the one of Helen standing over Malcolm in thier bed. I'm convinced these fit in with the scene where Caligula says he has insomonia. Caesonia probably tries to fuck him to sleep. The picture below was identified on Dec 25th 2005, it is when Caesonia enters "Drusilla's" bedroom just after she has died. Caesonia is disgusted when she see's Caligula kissing Drusilla's dead body, just like a mother lion and her baby cub. This picture is probably a production still. 
The picture below was not used in the film except for Lobby Shots. I believe this scene is when Caligula proclaims Incitatius as a member of the senate, and follows a little after he proclaims himself a god.
As well, there was a scene cut where Caligula has sex with his dead sister, giving us our second example of Necrofelia in the film. There was also more shots in the Harem Monsters Orgy scene at the beginning of the film, including a shot of a woman being driven across the floor on wheels. There was also more Isis scenes and more of the Rape of Livia.
Contrary to popular belief, this is not just Helen and Teresa, but it is all three! You can see Malcolm's Emperor ring on Helen's ass, I doubt the fact that just Helen and Teresa shot a sex scene. I believe that this threesome is the "scene that got out of hand" by Helen's standards! It's still pretty hot when you concider these are top rate actresses french kissing each other in the nude!
See all 3 "Insomania" pictures in order on one page by clicking HERE!
The Pastoral Scene. In March 2006, our buddy Rasputin figured out that Mirella was one of the girls holding Caligula & Drusilla's horses in the opening scene, as a Priestess of the Temple of Isis. The pic on the upper right shows the Pastoral Scene, and the pic on the right is most likely from the same scene, either Mirella relaxing, or during the scene itself. On the left is the cover of the May 1980 Penthouse, and Rasputin beleives that this is yet another cut scene, probably the Priestess's of the Temple of Isis doing a dance in honour of Incitaus being made a member of the Senate? We will have this all figured out one day! I promise.