Wallen, similar to the researchers Masters and Johnson, posits that many vaginal orgasms experienced during intercourse may actually be clitoral orgasms. However, he differs in his view, suggesting that not all women achieve these orgasms easily. He aligns with Bonaparte's theory, proposing that women who do experience these orgasms—referred to as paraclitoridiennes—are part of a unique anatomical group with a distinct sexual response.

This perspective indicates that the concept of the vaginal orgasm might have originated from the experiences of this smaller group of women, emphasizing that the majority may not share the same sexual response. Wallen's observations suggest a need to rethink previously held beliefs about female orgasm and its complexities.