24 Feb US study explores "orgasm gap" between genders and different sexual orientations. 23 Feb Heterosexual women orgasm less than any other demographic when having sex, study says. There's a huge gap between lesbian and straight women. Rachel Hosie · @rachel_hosie; Thursday 23 February GMT. 23 Feb A new study finds that heterosexual women have fewer orgasms than straight men, gay men, lesbians, and bisexual women and men.