Is a girl sinful when immorality was committed with her at the age of seven, knowing that she was not aware of what was happening?

The forbidden acts that occurred between you and your friend before puberty are not sinful, due to the absence of religious accountability at that stage. The Pen is lifted from the child until he reaches puberty. Lesbianism (al-sihaq) is forbidden, and many scholars consider it a major sin, based on the Prophet's (peace be upon him) saying: "Lesbianism is the fornication of women among themselves." There is no authentic evidence that the perpetrator and the recipient in lesbianism will enter Hellfire.