I thought that the definition of rape in this country required a penis?
In England & Wales, legally yes rape can only be committed with a penis (Sexual Offences Act 2003)
A person (A) commits an offence if—
(a)he intentionally penetrates the vagina, anus or mouth of another person (B) with his penis,
(b)B does not consent to the penetration, and
(c)A does not reasonably believe that B consents
(and ‘penis’ includes a transman’s surgically created phallus I believe, although can’t find the exact reference right now to back that up).
However women can be convicted under ‘joint enterprise’ - if a group of people are judged equally responsible for the rape, ie they directly facilitate the rapist committing rape, they are all convicted as if they themselves are rapists also.
Whether that explains 1.5% of rapists not being identifed as men - open to interpretation! What other explanation could there be 🤷🏻♀️
I think perhaps in Scotland, sexual assault by penetration other than with a penis is also considered rape, but IANAL and definitely not a Scottish one.