Holding one hand across her chest to keep her clothes up and another on the floor to not support her weight, Isis didn't want to scare of an artist "Sorry." her eyes had a worried look with raised eyebrows. Isis stood up by first leaning on one side and putting down one foot in a kneeing position to help her adjust herself up, she would offer Eve up with her one free hand but suddenly Osiris backed away. He pushed the floor with his fetes as he pushed Eve, though it wouldn't be a hard push.
Osiris is only ever afraid of Isis and wouldn't want to do anything to anger her, such as doing something weird with Eve. The reason why he acted the way he did was because he is a creature of excitement and seeing Isis that way with the torn clothes as well as having been in that situation lead to a growing excitement from his center. He didn't want Eve to feel it and scare her away or tell Isis who would have become angry.
Osiris is only ever afraid of Isis and wouldn't want to do anything to anger her, such as doing something weird with Eve. The reason why he acted the way he did was because he is a creature of excitement and seeing Isis that way with the torn clothes as well as having been in that situation lead to a growing excitement from his center. He didn't want Eve to feel it and scare her away or tell Isis who would have become angry.