Original sentence: Although there is variation between individuals, children generally are curious about their own bodies and those of others and engage in explorative sex play.However, the concept of child sexuality is fundamentally different from goal-driven adult sexual behavior, and imitation of adult behaviors such as bodily penetration and oral-genital contact are very uncommon, but are more common among children who have been sexually abused
Edited sentence: Although there is variation between individuals, children generally are  curious about their own bodies and those of others and engage in explorative sex play.However, child sexuality is fundamentally different from goal-driven adult sexual behavior, and imitation of adult behaviors such as bodily penetration and oral-genital contact are very uncommon, but are more common among children who have been sexually abused